Hey, I like this site! I was glad to get an invite to the linux.com beta, and am just now having a play around with all the features - and it seems there are quite a few.
I noticed that at least some of it is running on Joomla, which is cool, but I must admit to expecting to find it Drupal powered. Obviously there is a lot more going on behind the scenes, so I'll be looking forward to hear a bit more about that. (who knows, maybe it's Joomla, Drupal and Wordpress all at the same time - it almost feels like it).
Well done to those at the Linux Foundation for the work on this site! I'm sure there will be plenty of improvements as the site gets going, but I'm impressed with what you have done so far.
Keep up the good work!