I’ve started playing around with iGTD, a nice desktop GTD app mentioned on LifeHacker. It has a spiffy interface and integrates nicely with Quicksilver so I’m tempted to start using it rather than the many online apps that I’ve tried (gubb and todoist mainly). It even exports to your phone with iSync, but as luck would have it the CU500 that I just got doesn’t work with iSync. #@$!