Erin Bell soft-shoes her way through Eyetoy:Groove, and thinks that:
"When EyeToy debuted at E3 2003, people were excited. Sony's USB camera allowed gamers to put their image into the game and interact directly with the virtual environment without using a controller. EyeToy was praised both as a technological innovation and as a means of bringing casual and non-traditional gamers into the fold - bridging gaps between old and the young, male and female, casual and hardcore."
The rest of the review can be found here:
http://www.gamecritics.com/review/etgroove/main.php