Prepaid SIM in Italy?

[PhotoJim]

Use Libero WAP GPRS for on-phone browsing when you have GPRS, EDGE or 3G service. Use Libero WAP GSM when you have service but not GPRS or better (I assume it'll use circuit-switched data).

Use LIBERO Internet when you're tethering with your laptop, or if you have a smartphone.

You can usually select the profile to use when tethering in your dial string. You don't have to physically select it on your phone.