Pat Cheney wrote:
On Sat, 27 Dec 2008 14:50:21 -0800, SMS wrote:

2. I learned why my Motorola cables work with Blackberry but not vice versa
(e.g., the Motorla cable follows the standard; Blackberry does not)
Wrong, it's the opposite. Motorola doesn't follow the standard.

OK. I admit. I'm confused. That's what I originally thought.

All I know for sure is that my entire box of mini-usb cables & wall
chargers work on the Blackberry, but only the Motorola mini-usb cables and
wall chargers work on the Motorola RAZR cellphone.

Right, because Motorola phones won't charge if you just connect +5V and
GND from the USB port.

Actually, it's technically not true to say that Motorola doesn't follow
the USB standard. USB was not designed as a way to charge portable
devices, and Motorola is free to do whatever they want, but most devices
with USB jacks for charging and/or data are able to charge with just +5V
and GND being supplied.