FYI the incredible can be used as an external drive for aftermarket car stereos. I have an alpine IDA-x001 that has usb hookup and just for giggles i hooked up my incredible. at first it said that the usb device was an invalid format then about 10 seconds later it recognized it....i was able to scroll through all my folders and play my music.....I wasnt able to do this with my DROID. however be careful and not disconnect while it is playing....it may damage the sd card.
edit....it also charges while it is hooked up
edit....it also charges while it is hooked up