Palm has just released an OS update for Treo 700w measuring only 111 mm x 58 mm x 22.5 mm,running on the Verizon network, and it includes a couple of pretty useful upgrades. The new update brings the OS up to 1.22, and in the case of the Treo 700w, includes support for DUN tethering over USB and Bluetooth, A2DP stereo Bluetooth protocol support, and one-touch access to the speakerphone and mute buttons from the today screen.