I have a 'demo' Flash version up of a Flappy Birds parody I made. Coming to iOS very soon (free).
It's called Flap Tap And Crap. The bird automatically flies, up and down, you Tap to poop on vehicles below. Points for each hit you make on vehicles, bonus for windshield hits.. or hit other birds. Vehicles get quicker over time.
You get three misses - there's brief instructions when you load up the game. Poop lands on road it's a miss, or if a vehicle passes without being hit = miss.
It's really optimized for iOS (Universal for iPad or iPhone, with retina optimizations) and I'm submitting it to Apple tomorrow (probably a week- to two before it comes out on ios).. Meanwhile, here's the Flash link -- it runs smooth on iphone 4s+ / ipod / ipad... seems a little choppy on Flash.
http://www.touchimedia.com/flap.swfiOS version will be free, has leaderboards, and a facebook share button that will post high score to facebook. Among a few other things that this flash version does not. iOS saves high scores locally, and you can even pause then turn off phone and come back to it later and will remember where you left off!
My personal best on web version is 269, try and beat it!
Due to recent Apple and Google regulations, the name is now Grumpy Birdy for ios, follow on twitter:
http://Https://twitter.com/GrumpyBirdyTiMThanks
Cheers!