I have a brand new iMac 27" with Lion and very little else besides my development tools. RubyMine is constantly crashing with the 'spinning beach ball of death'; sometimes on start-up when indexing files, sometimes when opening a file and sometimes just when I go back to RM after working in the browser for a bit. There is very little CPU usage and no visible activity but the application is marked by OSX as not responding and even waiting for 30 mins doesn't allow it work things out.
I know this isn't a very helpful bug report but I need to know what I can do to help you figure out what is happening to cause this lock-up. So far its happening ~20 times in the last two days which means I'm having to resort to other tools for development. I've used RM successfully on a number of other OSX Lion machines (a Mac Pro and a Mac Book Pro) so it is clearly something specific to this machine or istallation.