iphone help 
  Evening all
 
 Its my birthday soon (25 again!)  and the missus has mooted the idea of buying me an iphone.
 
 So, my question is..is this just a tarts toy or are they actually any good ?
 
 However, the bigger issue/question I have  is that I am provided with with a works phone with T mobile service. Ive seen iphones offered 'unlocked' on ebay so does that mean I can just use my works phone sim card in it and away I go ? Internet access would be good but i am not that bothered..just the phone and and using it as an MP3 in the car would be great.
 
 Sorry but as many people will tell you in here I am a bit simple when it comes to gadgetry !!!
 
 Any advice appreciated (particularly with the point about using my works sim card in it)
 
 Cheers
 Nat