I've had this a couple of weeks now and the 3G is excellent for a quick browse or checking a phone number or train time etc on the go. Its very fast compared to standard GPRS or EDGE, the screen is also nice and clear and easy to read.
It works with Google Maps and Opera Mini, Googles Maps load almost instantly and its much better for directions than the supplied OVI Map program, hopefully OVI will get better as even after downloading all the software and stuff to my PC it wont download the maps to the phone (its not 100% compatible yet?), im presuming Nokia will update this soon as this is quite a new handset, and its the only problem I have had, but Google Maps is better anyway (in my opinion) for a non GPS phone.
The phone itself is excellent, phonecalls are very clear and texting is a breeze with the familiar Nokia setup. The phone looks like its worth more money, everyone one who has seen it wants to touch it and a couple of people have since ordered one.
The camera is only 2mp but its a good 2mp, it takes a steady photo and not blurred or out of focus like some higher spec phone cameras I have used, so ideal for a quick snap.
The only other thing I would mention, there is no USB/PC cable included in the box despite it being listed as included. You do get a 1GB micro SD card so you can add files to that or use bluetooth to move files so not too big a problem, but if you want to use the phone as a modem you will need a USB cable and you can pick one up for a couple of pounds.
Great phone, great price, you wont get much better for your money.
UPDATE - Ovi Maps can now be downloaded and updated through the Ovi software, and they work perfectly. A handy hint if you have any problems using the map software or are getting messages of places not found is, turn off the connect to internet option completely in the software as it seems to conflict with the maps you have already installed. You get the full map software the only thing you dont get is 'voice directions', Nokia charge for this, they make a big point of it all being free but if you want voice guidance they charge you.