I've been getting 3mbps on my iPhone 3G for well over a year in Toronto. When I went to Montreal, I couldn't even get enough bandwidth to load a webpage. I think it's probable that they've upgraded the backhaul in your area.
Current arsenal: iPhone 4S 16GB / iPad 2 WIFI 16GB / Apple TV 2 / Slingbox Solo / Acer Aspire Z5610 touchscreen all-in-one / Acer Aspire netbook
Fallen soldiers: iPhone 4 16GB / Apple iPhone 3G 8GB / BlackBerry Pearl 8100 / Motorola L6 SLVR / Nokia 5190, 3390, 8390, 3220 / Ericsson T18z / Mitsubishi G310 / Motorola C333 / Sony Ericsson T237
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