Synssins... thats way to much information...
btw look up wm5torage... same thing as card export but freeware!
Too much information, as in, irrelevant to the thread? Or too much information, as in "Whoah Nellie! You ARE a geek, and it blows my mind!"
In short, to answer the OP's initial question.
YES. You can use the HTC Kaiser/AT&T Tilt/Orange/anything else it is sold under, as a USB flash drive for a PC, by using a program that you install on the phone.
WM5Storage does not work for me. It will not load the card as usable. I ended up using CardExport, and paid for it. I love it.