I have a EuropaSIM (Voda Italy repackage) which gives me 500MB a day across Europe for 3 euros.
Interestingly on a trip to Germany last year I was only able to get on to 2.5G services, but the MiFi whirred along at 100Kbps - more than enough for most email, and light Web surfing.
+Steve
[size=2]Steve Gold
PO Box 1014, Sheffield S10 5YG, UK
Home mobie: Telefonica O2
Other UK mobiles: 3, Vodafone, Virgin
Foreign SIMs: Toggle (multi); Germany (Fonic); Poland (Orange PL);
Skype: stevewgold