UT3 Titan pack, and Patch out now. Downloaded them, and wow. The UI got a MAJOR overhaul, Game performance got a massive boost, haven't tried the new modes yet, but so far mostly positive buzz. If you have it on PC or PS3 You definitely need to download this.
Also Nvidia dropped a new wave of drivers today, even if you don't play games on your computer you should still keep your drivers current.
Some screens from the latest UT3 update
New Title Screen
With the new Titan Mutator, after you kill so many opponents you can turn into a giant sized character, who is a lot more powerful for a limited time.
But there can be several Titans running around at the same time. It's out there, but it's a lot of fun, and adds yet another dynamic. It's useable in ANY gametype. Remember these new additions are for the PC, AND PS3 editions.
The 360 version is belated because Microsoft won't allow such a large download over Live.
Also Steam has a deal on the game. You can play the full game for free for two days, after that you can pay a $12 fee to own it