Firstly, great idea for an app -- I often tell myself I need to take the time to enjoy the wins but there is always the next thing to move on to. Being reminded of them at a later date makes perfect sense, and I'll download the app to give it a try when I'm next on my ipad.

In terms of advice -- everyone's already said it: don't rewrite now, just fix the important bugs and give it a push.

Good luck!