Had mine since it came out, so have only got V7.8 but haven't had a problem with it. It was a bit slow on the app side of things at the start but there are plenty out there now. Perhaps its down to the actual phone as Nokia have started to get back to making decent phones (it all went to a rats ass after the 8230s imo )
Seriously thinking of getting the 925 when it arrives in the UK as long as its not an EE / Orange exclusive as they blow!
Android for me. Personal bias against Apple, and after Microsoft's debacle with Skype trancscipts... well, let's just say I'm exceedingly cautious about what information of mine I let cross their network now.