I just found out few of the leaked features for the upcoming new Treo 800w from Palm. It is going to support a mini-USB plug located on the bottom for syncing and charging.

It is likely to be similar in size and as slim as a Palm Centro smartphone. It is supposed to ship with Windows Mobile 6.0 operating system and is supposedly to get compatible with Windows Mobile 6.1 once an update is released. 

It will also be Compatible with Microsoft System Center Mobile Device Manager 2008. It will feature a very handy WiFi on/off button.

It may have a 2 megapixel camera,  EV-DO Rev. A radio, Bluetooth 2.0 +EDR, and 802.11g WiFi connectivity
Also it will have the basic microSD memory card slot, also an in built default 256MB memory.