I recently installed "Mocha FTP Server"

http://www.freewareppc.com/communication/mochaftpserver.shtml

What this allows me to do is to run this FTP server on the mogul (on the Wifi) and then from a PC, I can copy directly onto the storage card or main memory, even if the Mogul is in another room (sitting on its charger, usually).  On Windows, you can use an ftp share to access the mogul, or a specialized client (I like "flashfxp").

The copy speed over Wifi is fantastic.  If you leave the server running, you can use the microsd as a "wireless memory stick", although I also use bluetooth (lower power) for this. 

Here's the link to their site with the "freeware" license key (at the bottom):

http://www.mochasoft.dk/freeware/ftpd.htm