Motorola ROKR E2

i'm looking into a new phone and searching for a way to condense some gadgetry and i'd like something that can be:

-a world phone (especially need it to work in latin america so it will have to be GSM); need phone + data transfer

-i want it to play music off an SD card/Memory Stick PRO Duo


i have some experience with motorolas having used a SLVR (which i didn't like at all- esp. the menu navigation, never quite got used to it).

what are people's experiences with the ROKR? is it possible to:

-load up a bunch of MP3s on an SD card and play in them in the ROKR without having to go through itunes?

-what's the size limit on SD card?

-how's the reception on these?

thanks all

alfio