Interesting.
Uptime is now 16 days here, which included an install of Mandriva 2008 under VirtualBox.
I'm running Ubuntu 7.10, which has been in-place upgraded from an initial 6.10 install, via another in-place upgrade to 7.04, without any significant pain.
Other than an early version of VirtualBox, which caused a bit of a lockup that I didn't work too hard on getting out of, I've had no crashes... for over a year? (Other than a few power failures.)
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"Striking up conversations with strangers is an autistic person's version of extreme sports."
Kamran Nazeer