OK. So I brought my k750i about 6 months ago, it was my first real phone and it cost me a pound less than 100 quid. It is a Sony Ericsson phone and I recommend it to anyone, it's a tidy little thing with some handy features.
My lovely phone has bluetooth. This is a pretty common thing in phones now and it only ever seems to be used to do simple and boring things like transferring files. I have never seen anyone use their mobile phone to control their computer, which is clearly a function that Sony Ericsson have added to some of their phones, but nobody seems to know about. Personally, I would like to see more done with bluetooth, it seems like such a waste to have its functionality on a phone, and still have so few uses.