So I used http://iphonespeedtest.com/speedtest and thought I would share my results. I tested it 10 times for each connection and took the average. I also posted my ethernet speeds at home as a comparison (also with Rogers).
I'm on a 2.26Ghz 13" MBP using iPhone 3G on the Rogers network in Waterloo, ON.
Ethernet (High-speed at home)
1501.1 kbps avg (507 kbps low, 2123 kbps high)
Tethering (USB)
506.4 kbps avg (368 kbps low, 659 kbps high)
Tethering (Bluetooth)
495.7 kbps avg (216 kbps low, 827 kbps high)
I'm on a 2.26Ghz 13" MBP using iPhone 3G on the Rogers network in Waterloo, ON.
Ethernet (High-speed at home)
1501.1 kbps avg (507 kbps low, 2123 kbps high)
Tethering (USB)
506.4 kbps avg (368 kbps low, 659 kbps high)
Tethering (Bluetooth)
495.7 kbps avg (216 kbps low, 827 kbps high)