I was having frequent crashes with a wifi adapter that seemed stable on Rasbian - after one crash the adapter stopped being recognized.  I haven't bothered to test it anywhere else as the Pi sits right on top of the gigE switch in my office so it's not like I actually needed the wifi.  Ever since pulling the adapter I'm seeing multi-day uptime's, it still crashes on occasion, but on the order of once a week instead of 6 times a day.  I'm also running the Minepeon 0.2.3a image currently.