I picked up GTA4 for PS3 last night at got to play for about an hour. It seems pretty good, supposedly really sandboxy/open ended, but as of yet I'm running around doing missions with some loser Russian guy. As an interesting comparison, it looks to me as if the Xbox360 version of the game is sporting better graphics:
It looks much less blurry on the Xbox, but this is a pretty low res comparison, and who knows how they did the capture...it must've been done via component cables, so there is no indication how the purely digital HDMI would stack up against each other.
In other interesting news, the newest Ubuntu release (Hardy Heron) is out! I somehow missed out on the buzz over this release...but I'll have some reviews of features once I get it installed. It'll be a few days I guess because the Canonical servers seem really bogged down by the legions of users upgrading, and I'm getting about 50kb/s to the upgrade server at the moment.