I'm using a Droid 2 Global, Android 2.3.3, with Verizon.
Every so often - the frequency varies - the phone gets into a mode where, if I tap anything on the home screen - no matter what - there is a delay, and then the phone goes back to whatever the last application was that ran.
If I then tap "home," it would go to the home screen, and "draw" the home screen more slowly than normal (which is instant) - and then if I tap anything on the home screen, the same thing happens.
If, from the application, I tap "back," it goes back to the last application before that - and then that becomes the application that it keeps going back to.
The way I get out of this is by power-cycling the phone.
Is this a known problem? I tried Googling for it, didn't find anything.
I haven't been able to correlate it to any particular type of activity or application. It doesn't seem related to the amount of memory in use or the number of "running" apps.