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I think it's an interesting product, but one of the biggest arguments for web technologies on native apps is reducing the cross platform burden. Your example uses Parse as the data backend - I think Parse would be far less well received if it only supported iOS. I wonder if you're considering supporting additional platforms?

"Update your apps without pushing updates to the store" is a good problem to solve...but if you're going to extrapolate your native logic and encapsulate it in JavaScript I'd hope the next step might be an Android library to complement the iOS one.

We are planning an Android release. You will be able to re-use most or all of your web portions, which we're really excited about. Our bet is that today this will help some iOS developers enough to use, and when we release Android it will bring that many more developers into the fold.

Honestly, it's not useful to me until it's cross-platform, and your one "killer feature" that other enhanced JavaScript wrappers don't have is explicitly against Apple's developer TOS.

I would worry about releasing this feature publicly at all, since it might jeopardize your existing apps when Apple realizes you're able to push changes to code. They used to ban all scripting languages in large part because they were worried about developers pushing new code to apps; after a lot of pressure from various directions, they relaxed the scripting language restriction, but it's still quite explicitly against the developer agreement to ever download new code to an app.

That's good news: I think with more than one platform the advantages of a web-based approach really become apparent.

I'm really hoping Apple eventually migrates to automatic binary diff patch application much like how Google Chrome operates. Chrome has proved that you can get all the rapid iteration and development you could dream of without sacrificing performance.

Apple already uses binary diffs. The only thing missing is a new UI (or lack thereof).

I'd be surprised if 'update apps automatically' doesn't become an option in iOS6 (probably after the iCloud backup completes), because having to keep going to the app store app is becoming a meaningless chore.

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