[smiwin]

Easy to answer this and as my opinion is the only one that matters I'm sure you'll value it:

Had treo755: solid phone/pda (thanks to palm modifying windows mobile), screen size is a bugger, one handed keyboard is a huge plus... you'll find software options limited because of screen size.

Mogul is not for the faint of heart. I've had to modify and find appropriate programs to make it the jewel that it is, but I've spent a considerable amount of time doing so and now it can do everything, no limitations:

AE Button Plus
TouchPal
InClose Mobile
S2U2
Pocket Informant
TCPMP
Live Search
TouchFlo
Calendar+

All these programs are needed to make windows mobile behave so you don't feel like you have your head up your butt when using. A huge tip that most either don't realize, won't share, or just can't abide by is "LEAVE THE TODAY SCREEN ALONE" the more apps and customizations you throw on the today screen = more problems, period.