I own both the N-Gage and Gizmondo. I don't think the Zodiac is really a portable game console. Anyway, I'd say they're both equal. Actually, all consoles are equal without games because they're just plastic and metal. It's the games that should be compared. Anyway, like all consoles, they have their good and bad games. N-Gage has 3D Snakes which I heard was very good, but I have yet to play it. Gizmondo has Trailblazer and a few other games; Trailblazer is one of the best games I've ever played because of its precise control and super fast speed. Like Metroid (in ball form) in a 3D Sonic game moving in one direction. Something like that.