Time With The Revolution
IGN managed to get their hands on a Revolution Developer's Kit, and have put up a tantalizing hands-on impressions article. Folks who are very much looking forward to Nintendo's entrance into the next-gen war may find things of interest here. From the article: "One thing is crystal clear from the controller-based development kits, though: Revolution will definitely operate as an extension of the GameCube hardware. These preliminary kits include only a wired Revolution controller, a wired nunchuck attachment and a wired motion bar, which some studios have labeled the 'wand.' So the obvious question is, how can developers possibly hope to test any of this gear out? The answer is simple: the controller and its attachments plug into existing GameCube development hardware."
Just because Nintendo made a low-cost controller dev kit by interfacing their new controller technology to their existing hardware doesn't mean that you can infer that the Revolution will be built on Gamecube hardware. All you can infer is that Nintendo has possibly made their prototype Revolution controller a derivative so that current Gamecube developers can explore the new controller paradigm without having to either buy, or wait, for the new Revolution dev kits.