Hey Alex, I actually just created a space shooter! You can check it out in the app store, it's called "SuperSpeed." Or you can check out my portfolio.
I could potentially update/make your game for cheap because I'm quite a poor guy right now, in a really short amount of time. This is also my first time using freelancer, so I want to test this out.
I'm a pretty productive one-man team, or I could co-op with you. My specialty is Cocos2d. I could probably produce your game in 3 days.
Cheers!
-Carl