This one is still very much a rumor, but PreCentral is reporting that it's heard from a "very reliable tipster" who says that Palm is prepping a new phone codenamed "Mansion," which may or may not be the same device that recently turned up in a certification database under the name P102. The real kicker, however, is that the phone is supposedly a touchscreen-only device, and that the screen is said to boast a fairly high 800 x 480 resolution -- no word on screen size, unfortunately. Not much more than that to go on at the moment, but the "Mansion" codename itself does at least make a bit of sense -- as a PreCentral commenter has noted, the Pre was originally codenamed "Castle."