I'm stuck on AT&T in the US, and I have tried the Dell Streak, the Captivate, and the Aria. I loved the Aria, but it's just too small for my tastes. The other two have been laggy and buggy, and I'd rather not go for them. I've heard that the Desire is a great phone, and that the Telus Desire uses the same bands as (and is therefore compatible with) AT&T. Has anyone done this? Is it difficult to get working on the AT&T networks? Did you have trouble with it? Does everything work as you'd expect (including 3G)?