Ihave an HP iPAQ 5450 handheld device. When I remove the battery, I see that there is a slot for a SIM card. So far, I have not found any software on the iPAQ itself that make any usage of this slot. Is there any software that make usge of this slot? If so, what can I use slit slot for? Would like it very much of I could insert a GSM SIM card and go direclty on the web by using it.

Thanx,
Imran