(sorry folks but the thread on Midway stating that they "expect" a delay in the PS3 got accidentally deleted when one of the forum admins was trying to delete a particular post so here's a repeat of what I posted on this subject)...
As a public company, Midway felt an obligation to its shareholders to let them know about the possibility of a delay. Our goal is still to get the PS3 version of UT3 in stores before the end of 2007. However, we will only ship it once it’s ready and is the best game we can deliver.
In addition there is some good news as a little extra time in development means that now the PS3 version will have all of the same maps as the PC version whereas we previously expected to ship a fewer maps on console.
The PC version is still on track for November with a downloadable demo to be made available prior to retail release.