Upgrade to USB 2.0 possible?

I've got an MBP 15" with two USB 1.1 ports. Is there any way to upgrade to USB 2.0?
Thanks.

Hi Stedman and Niel and thank you both for your responses.
Maybe what is confusing me is the ports themselves. The USB ports on my MBP both are USB Type A connectors. I have two external drives that I connect using Firewire but both of which have ports labeled USB 2.0, both using USB Type B connectors. I assumed that USB 2.0 required Type B connectors. Is that wrong? Are there USB cables that have Type A and Type B on opposite ends?
This is all prompted by the USB 2.0 requirement stated for the iPhone. I'd like to get the 3G iPhone but need to be sure that my MBP will meet the phone's hardware requirements.
Cheers,
Michael

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