Comment 2 for bug 54117

Partially - first attempt to configure this card on Feisty results in a hard lockup. After that everything looks ok, although it involves CLI - both network-admin and Network Manager were unable to do their work.

I suppose that Feisty uses a driver from http://rt2x00.serialmonkey.com instead an old Ralink driver so most bugs should be ironed. Not all nevertheless - https://bugs.launchpad.net/ubuntu/+bug/122774 ;-)