I had a hard time downloading the 4.2.1 update. I repeatedly lost connectivity and lost the segment already downloaded. Success finally, but the update turned into a complete restore. After the restore, no problems so far. No crashes to speak of. I now have 16 folders only on one page. Plenty of room for frequently used icons on the home screen, if I wish. Lastly, the back up and sync on the iPad has improved significantly. Now the backup portion of sync typically takes a lot less than 5 minutes almost all of the time. I am pleasantly pleased.
One off topic question please. Since each application never closes, but only saves its state in the multi tasking lower window thing, would one not end up with every app you ever run in a saved state in the saved state area? Shirley this would eat up memory un necessarily? I've read that the OS will close apps if it needs more memory, but wouldn't it be better if the saved state apps were closed on their own, or at least by a clean memory command? No problem so far, just asking.