Just got back from Linux World in San Francisco (actually, show ended on Thursday but I hung out until the 19th to visit friends.) Good show, but 6 days is a recent record for me being away from home, and it's good to be back.
I focused on the HPC and kernel development tracks while I was there. In particular, I have several new things to experiment on that I saw there.
For starters, it became clear that I should probably get an AMD-based system for my OpenSolaris experiments. The demo machine I saw there with OpenSolaris with a Brandz CentOS lx zone on it seemed like a really decent machine, and while I've always liked SPARC, maybe it would be good to have both.
For the meantime, I will actually be playing with opensolaris on VMWare. Virtualization has been a pretty big topic lately, and at the conference I talked to SuSE (who's distributing Xen), XenSource, VMWare (which I've been using since it was first available, and am currently using at work and at home), SWSoft (makers of OpenVZ/Virtuozzo) (which I'd managed to never hear about before somehow.)
I'll have more to say about what I saw there. Next time I may even take pictures.