Will MBP run USB2 external devices w/o extra power?

Has anyone tried an external USB hard drive or other high current device on the MBP yet? Did it work without needing any external power?
One of my major disappointments with the latest G4 PowerBooks was that their USB ports are current limited and will not run external hard drives, etc. without some sort of supplementary power.
What about the MBP?

I have three external hard drives for my Powerbook, and two of them are designed to use USB power. They do so without a problem. The drives need to be of the right spec to use the USB power. Or, perhaps you have an earlier rev of PB than I do.
I also know that the same drives I use now (running on USB power) will also work on the MBP, even though I don't have mine yet. It is part of the spec, however.
Bob

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Thank you for visiting Apple Support Communities.
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Some private information, such as your name, may appear in the log. Anonymize before posting.
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Will MBP run USB2 external devices w/o extra power?

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