Another XM2GO player, the Helix by Samsung, is technically the same portable satellite radio device as the Pioneer Inno. The specifications of both players are identical, however there are slight aesthetic differences.
Both players have the same measurements and weight, as well as included peripherals and options.
The Samsung Helix is also set for a spring 2006 at 400USD.
So when chosing between the two latest XM2GO players, flip a coin it might make the process easier