I doubt he did it all by himself, even if his work is authentic.
edit: is that no longer the case? I could have sworn it was that way, at least in the beginning.
I had coded a dozen games for my own 8-bit Sinclair Spectrum by 11.
If you want to show us a 14 kid coding, then get it to do some coding stuff. Example, solve a math. equation or write an algorithm or hack Windows kernel... If you show us 800K downloads, it's just the app success that happens either by good planing and marketing or a sheer luck.
http://cocos2d-iphone.org (which uses:)
There are layers of complexity that you simply can't avoid. Add that even the simplest physics algorithms are non-trivial.
Many of us were programming before we hit the grand double digits, however in ways modern development is more difficult in some ways because you're building on layers and layers of existing code (Motorola assembly was easy compared to developing for the iphone or Android), which is where experience comes into play.
Nonetheless, the way this story was delivered, the fact that this kid has purportedly made 10 apps...I dunno it seems like a really clumsy marketing tactic.