Moved from the Palm Pre (1st gen.) to Android on EVO 3D 6 months ago. AFAIAC, both the Back button and the Home button are crutches. I use it w-a-y to much b/c there is no card implementation (like webOS had). It was very easy to go back & forth between open apps and cards within the same app. Backswipe=last screen viewed.Simple. The inability to easily, definitively close apps (upswipe/throw off screen on webOS) is maddening. I never know if an app is "still" running or really closed (& don't know until I go home & pick app.... Sloppy, messy, maddening. I REALLY miss webOS.