It's HSDPA (my company launched the first HSDPA network in the world

up to 3.6 Mbps on there but you may need to get your network provider to enable 3G/HSDPA first and possibly re-provide the SIM card.
Plus if you use it watch your data use. When we tested on an uncapped standard £1.50per MB contract we clocked £100k+of use in just one month on a HSDPA card.
Good choice overall. Just update the software from the Nokia site when a new firmware version is released.