Are there any specific distros that perform well or seem to have more problems than others?
I am going to be picking up an Calpella-based laptop, but I haven't seen a whole lot of data about how Linux-compatible the new Core processors and their chipsets are.
Unfortunately, it would seem that at least for the moment, Calpella is not handled in Linux very well. I've only been able to get one distro to run (the alpha of Ubuntu 10.04 Lucid Lynx), but it hangs up whenever you switch to battery power. Fedora 12, OpenSuse 11.1 and Backtrack 4 Final all refused to install.