http://xbox360.ign.com/articles/655/655583p1.html
"Perfect Dark Zero looks good and is certainly much improved over the sporadic leaks we've seen and those early, rather bleak, screenshots. But even the build we played didn't convince us that Perfect Dark is entirely ready. It looks like Rare will work until the last possible day to put all the finishing touches on it, and in the meantime, we can say it was fun while it lasted. I'm not ready to say it's the killer-app we were hoping it would be. Hopefully, we'll be able to play a near-final or final build in the next month, at which time I hope to have better, cheerier news."
"Perfect Dark Zero looks good and is certainly much improved over the sporadic leaks we've seen and those early, rather bleak, screenshots. But even the build we played didn't convince us that Perfect Dark is entirely ready. It looks like Rare will work until the last possible day to put all the finishing touches on it, and in the meantime, we can say it was fun while it lasted. I'm not ready to say it's the killer-app we were hoping it would be. Hopefully, we'll be able to play a near-final or final build in the next month, at which time I hope to have better, cheerier news."