I remember getting one from GetJar or something a long time ago. I have an Angry Birds apk on my 4shared that I don't remember putting there, I guess it might be that one. I'll try it later.
Here is the old version that doesn't lag really badly on the Hero. It's 1.3.5. I think it works better in airplane mode because of the ads. This is the one without the background and the ground colored. http://www.4shared.com/android/3HOzGBWJ/Angry_Birds_135.html