Interface is a bit jerky, but I can live with that. What I cant live with is that it killed the usb tether. Its just greyed out and does not respond. It is my only source of internet and I use it daily. Was working right up till the upgrade. Is there a way to go back without a total re-install?
Edit: I got mine fixed, at least on Linux
Here is a thread about it http://ubuntuforums.org/showthread.php?t=1877366