Palm Infocenter has this report.

"TreoCentral has uncovered a set of Palm internal training slides that detail a number of upcoming rom updates. The most surprising detail is plans for a soon to be released Windows Mobile 6 Professional OS update for the Verizon Treo 700wx. Incidentally, minor dot updates will also be coming to the Verizon Treo 755p and the Sprint Centro, though no details on these were included in the slides.

The Verizon Treo 700wx Update v1.24 is listed as coming this "Spring and Summer." It will be a free update and only be compatible with the 700wx. It is unclear from the limited details if it will be WM 6.1 or the older WM 6. "