Nokia N73 on O2 drops connection with the original firmware, but just noticed i think there might be new firmware available - unfortunately my phone is poorly sick and won't charge so is on it's way back to O2 so i can't check!
Friend has a N73 on Orange and his phone worked for the 30 mins he was in the car. Think Orange were quicker at bringing out firmware updates.
To the person that asked about allowing remote sim, i don't think it makes a difference to downloading thr address book. It didn't in the brief time my N73 was connected.
Will update this when i get my phone back in a coupkle of weeks.