I was in Ireland this week. Obviously, the CDMA phone won't work there, but I took the phone anyway. I figured it would be useful for geotagging photos and checking email/web at hotspots.
Sitting the hotel lobby, I could not get a strong enough signal with the phone to connect. My laptop had a 'good' signal and connected without issue, as did my coworker's iphone. I looked like an idiot walking around the lobby trying to find some place close enough to the router to connect.
Back in the room, I tried setting up an ad-hoc access point using internet connection sharing on my Laptop. The phone wouldn't see that at all.
At home, I have similar issues. I can't pick up the router at all in my home office which is 3 (small and relatively open) rooms away from the router, even through every other device I have connects there with no problems. In the same room as the router, the signal is strong and fast, but it drops dramatically as the distance increases.
This problem actually caused me to return the phone and take advantage of the 30-day try-out period. I liked the phone and android, and am hopeful they can eventually get this issue resolved - but I can't risk being stuck with a phone that doesn't work the way I expect it to.