Brother site Kotaku is hearing that there is some sort of deal working between Microsoft and Gizmondo that will lead to Halo showing up on their portable device. The GPS-enabled portable gaming device is also getting some backing from Electronic Arts and Sega. A Gizmondo rep goes as far as saying that their device is better than the Playstation Portable.
Halo Going Portable [Kotaku]
http://www.kotaku.com/gaming/gossip/halo-going-portable-028928.php