I figured this was worth mentioning.  Dominic Nguyen, Megatokyo editor and freelance writer for a number of tech and nerd magazines and websites, has written up a review of the Japanese arcade sensation The iDOLM@STER.  A sort of managerial sim-slash-minigame-slash-teen fetish arcade game where players try to make Japanese teen idol stars out of high school girls.  His account gives a fair appraisal of what I suspect wil be an XBOX 360 hit, but I think the fact that every photo of the game during play features a middle-aged man in control tells me more.