Arghh that's not good. I use my IR remote all the time on my Alu 24", I'm going to be upgrading.
Sure is a lot of stuff missing on this new iMac that really didn't need to be scrapped in my opinion.....DVD Drive (I have an external anyway), Audio-In, and now the IR sensor? Oh but wait, it's thinner and lighter...since its so important for a desktop.