Back to the original question about Italy:
We happened to have both Wind and Vodaphone dongles (the Italians call them Internet
Keys) on board when we returned to Sicily
this month. The Wind dongle was purchased in Rome, the Vodaphone one in Greece
. In our experience the Vodaphone option was faster. The prepaid price
was 10€ for 10 days with 350 MB/day limit. If you exceed the daily limit, the dongle slurps the remaining credits quite quickly without warning. Wind was slower, but you got 100 hours for 10€.
Now we're in Spain
and find that we cannot simply replace either SIM with a Spanish one. All dongles in Spain
are locked. We would have to buy a new dongle and a contract
. The size limits are ridiculous, and Internet is generally more available in Spain than in Italy (albeit often slow), so we said forget it. We visited Vodaphone and Movistar stores in Ibiza city to get this information.