Another thing I have noticed is that it seems like typing is slower on .99 than previous versions.
By that, I mean if I type at my normal speed, the blue highlight lags much further behind my presses. For example, if I typed "example" quickly, by the time I pressed the last 'e', it might be the 'p' or even the 'm' that has a blue highlight, where in previous versions, it would be highlighting the 'l'. So far, I haven't noticed it missing letters that I pressed.
Verizon 8130 (on the bench, now
Verizon 9530 (replaced by VZW 4 times, then with a 9550)