I bought Kindle International just to see if I can buy books online.
Yes, good news, 3G works; bad news only book store and wikipedia works, all other website was disabled, not sure it's Amazon or Rogers.
I got DX too refer to my old thread
https://www.mobileread.com/forums/showthread.php?t=52577
Now the question is which one to keep, DX is nice reading PDFs but too big to carry arround.