They just updated their website. While the M300 model was apparently a 900/1800/1900 triband, the fancier M500 model is apparently quad band. No price listed for the M500, it probably falls under the category of "if you have to ask, you can't afford it." Still it's amazing they can build a quad band phone with a touch screen keypad, bluetooth, a PDA organizer, and an MP3 player into a wristwatch that weighs 60 grams

Phones/Wireless Devices: Doogee S90, Isatphone Pro, Amazon Kindle 3G, SkyRoam MiFi device, Karma MiFi device, AT&T Liberate MiFi device
Sim Cards: T-Mobile (Mint), AT&T (Mifi device or Kindle), Koko
Satphone: InMarSat
Broadband US Wireless Data: AT&T postpaid, Sprint (Karma Mobility prepaid)
Broadband International Data: SkyRoam
VOIP: Skype