[CentOS] SunFire X2100 and X4100

Anyone seen either of these "in the wild" yet?  RHEL3/RHEL4 are install 
options so I'm assuming CentOS will just work out of the box, but I 
thought I'd ask here.  The 2100 seems like a viable alternative to 
whitebox 1RU boxes that we currently use, especially with the new dual 
core processors.

Cheers,