Great plugin, I have to admit it entered my list of "must have" IDEA plugins. :)
Here's a feature request: could you add a background option for actions that can, potentially, take a long time? Fetching the list of pending updates is one of those actions I'd rather not wait for, especially when working with a large project. I know the result can be slightly off if I change the files while the plugin does its job, but I'm willing to live with that risk (especially since I know what I change, most of the time I'm looking for things other people changed).
Also, with the last build I failed to get a list of pending updates. The progress bar hangs at about 30% every time. I tried several times, susspecting some kind of cvs lock, but it doesn't seem to be the case. IDEA is responsive, so cancel worked every time.
Let me know if you think a thread dump might help.