Exactly. And since we seem to need yet another thread on it, I will just copy and paste what I posted there...
I think it was a major screw-up in the ICS Android UI. If there is no menu button, and the app is not ICS friendly, they really should have given the user another optional setting of some sort that did not involve robbing the screen.
The perfect proposed solution: Change the "recently used apps" button into a menu button, and move the recently used function to be long-press on the home button. Choices are good. I am hoping this idea might be possible at some point without totally ripping out the ROM.
Maybe in a few YEARS all the apps will be fixed. But in the meanwhile.... Launch Angry Birds and stare at this crazy chunk of wasted screen the entire game.... yeesh.