Some people have too much time on their hands - and that’s a good thing. An intrepid FCC document-surfer over at Treo Central has uncovered email back-and-forths between the FCC and Palm. The documents seem to hint at a GSM variant of the Palm Centro (codenamed Gryphon/Gandalf) headed to AT&T as the Palm Centro 685 (Sprint’s Palm Centro goes by the model number “690″). A Palm Centro intended for a GSM network makes sense, and we’re not at all surprised to hear that AT&T might be getting their very own Centro next year. There’s also mention of a Palm “Otto” - which is likely the Asus-sourced Palm Treo 500w that may be headed to AT&T. What does surprise us, however, is the mention of an unknown device - codenamed “Zeppelin” and sporting “co-located WiFi and radio.”  Whispers on the internets are pointing towards the Zeppelin being the rumored Palm Treo 800w . The mention of WiFi and radio could mean that the WiFi circuitry is shared with the Bluetooth radio or a cellular radio. If the Zeppelin includes a cellular radio, we could have documentation confirming a Palm Treo 800w. If the mention of “radio” refers to a Bluetooth jobby, we could have some expired documentation referring to the dead-like-mullets Palm Foleo - of course, Bluetooth could also indicate a mobile phone as well. Do we, or don’t we have a Palm Treo 800w on our hands? Only time will tell. We love FCC documents, but we love uncovering unintended-for-public communications between manufacturers and the FCC. We’ll keep an eye out for more details on the Palm Treo 800w,  stay tuned. [Via: TreoCentral ] ---Related Articles at IntoMobile:Could this be the Palm Treo 800w?Verizon to release Treo 755p, 800w this summerPalm Treo 755p for Verizon spotted in the wild!Verizon goes live with Palm Treo 755p; charges arm and legTreo 500v approved by the FCC; Manufactured by Asus?