I just got back from 3 weeks in Europe. For some reason my Google Maps would not work, but otherwise it was a great experience. Verizon unlocked my phone before I left without any problems. That allowed me to buy a Vodaphone SIM card and use it for phone calls. Mobile to mobile was €0.47/minute, mobile to land lines was €0.27/minute.
It was kind of a hassle to swap the SIM cards back and forth, but it was well worth it. Even though I was on vacation, it was nice to be able to stay up on work emails and keep my mailbox cleaned up. I also did a daily journal, most of it from my 8830. Katzfey Journal