OK, so I did the OTA 5.0.1 patch this morning on both my iPhone 4 and my iPad 2.
And...?
Way too early to tell if it has done anything about battery issues - but I didn't seem to have an issue with the OS5 upgrade on that front - still was able to get thru a full day of phone, app and data use with no change in my settings - so hard to judge.
As for anything else - was there anything else?