Delphi announced XM MiFi, the first portable XM satellite radio. It will be out in December and cost $350. Five hours of batter, five hours of audio storage, six-line LCD, sports score ticker, clock, and alarm.
$350 is steep, especially compared to the $125 I paid for my Roady2. The bundled accessory kit included with the MiFi is pretty extensive. The home and car kits usually cost $40 each, the remote control is a $20 accessory, and case and clip cost about $20 as well.