I'm extremely conservative when it comes to upgrading OS's on my work-a-day machines. That's why I never upgraded my iBook from 10.3, since I was earning my living on it when 10.4 came out. For similar reasons, I dragged my feet on upgrading my work laptop from Ubuntu Dapper to Edgy. Last night I bit the bullet, took it home and ran the upgrade all evening. It seemed to have worked pretty well. The only downer is that it broke my wifi card since apparently ndiswrapper is broken in Edgy. I like it though, and the support for greater than 512 Mb SD cards is built in now. That's nice, since that's how I watch vlogs during my lunch hour. So far, so good.