I discovered something very disturbing tonight. When the phone rings on a Blackberry, the phone has complete priority. On my iPhone, I never missed a call due to some other app doing something. On the Droid, the phone app is as vulnerable and will generate pop ups to force quit.
I missed 2 calls today due to major lag for an application that was supposedly "closed." I took a few pictures about an hour before a call came in. Checked mail and did something else afterwards. Somehow the phone wouldn't answer despite my numerous swipe attempts. Finally after I lost the call I got the force quit/wait dialog box. I waited, then quit and the phone went into the camera mode, making flickering noises to get its way in there as it usually does.
Anyways, I wonder if there is a memory leak of some sort in 2.1. I'm getting more home screen missing icon issues than before. The only thing left is to wipe the entire phone and SD card and see if that helps. I have nothing other than system stuff running except for a search app - aurora. I even turned off mylock.
Regardless of whether the growing lag has an issue with hardware (doubtful) or software (not likely) or corruption in the phone or SD card (possible but not likely), what really concerns me is that lack of priority given to the phone application.