I tried iOS 6.01, and wished I hadn't. I don't utilize Bluetooth, but for everything I do, iOS 6.1 has worked quite well.
Lately, I've had an infrequent/intermittent problem with delayed printing of characters when I'm typing at a natural clip. I could be a number of things, I just don't know which. Has anyone else experienced this?
I did on an old ipod running 4.2.1. Didn't go away but wasn't too big of a problem for me.