If it's not mini-B, it's no good

My Canon Digital Rebel XT and my Canon s410 both use mini-B USB connectors. The Motorola RAZR and the Blackberry use mini-B connectors. On the other hand, the Palm Treos use yet another of Palm's proprietary cables.

As a general rule (the iPod being the noteable exception), one could do worse than base all buying decisions on the use of the mini-B USB connector for data transactions.