While Microsoft has being busying itself with the controller-less Project Natal for the Xbox 360; and Sony seems certain to announce its own motion control, Ubisoft has been preparing offering to go with Your Shape, a fitness game set to launch on the Wii in time for Christmas.

Camera-based controller will be packed into the box - a first for fitness games. Of the game and peripheral, which were revealed at Ubisoft's E3 press briefing, the publisher tells us, "Featuring Ubisoft’s proprietary Body Tracking technology, the game enables players to scan their bodies and then projects their images onto the TV, creating a personalized and interactive workout. Based on the player’s specific body shape analysis, fitness level and personal goals, Your Shape is able to recommend the workout program that is best suited for them."

Ubisoft emphasised the fact that you won't have to hold a controller, noting that you'll be able to incorporate any fitness equipment you already own.

Given that the Wii Remote doesn't play a massive role in the game, there's not a lot to stop Ubi bringing Your Shape to other systems...

You can see the whole thing in action in the video below. You might want to compare it to this video of Project Natal in action. Meanwhile, rumour has it that Sony is set to reveal a motion controller of its very own later today.