Some additoinal questions that came to mind,

1) How many BlueTooth devices can be in operation (not just paired) at the same time.

In other words, can I have DUN (data(GPRS)) call to the mobile telephone in progress and at the same time have a Bluetooth HandsFree earpiece and a BlueTooth keyboard all running.

Why? I expect to have to talk on Skype using the BT handsfree, while typing on a computer over VPN back to work via GPRS.

2) Has anybody tried to have a data call and a voice call in progress at the same timeon their handsets? Would be useful to know if this is possible. I will buy a Nokia 5310 soon for this purpose (I know this is not technically the right place to ask this...