N900
there's no mobile phone that can do what it does but with buying it this year ,you have to take care of what are you buying as i don't think that there's still a new N900
so here's some tips that makes you buy a good one

here in egypt many sell it too but most of the devices have changed the usb socket so take care of it
also they decisive people by telling them that the device is new by changing the screen protector (digitilizer) and changing the whole plastic cover so to make sure you can open the back cover and see if it is scratched or not..
another thing make sure that the screen is not scratched .. remove the screen protector and check it

the usb thing is the most common