Has anyone built USB adapters for Gamepads /Memory cards?

[Quall999]

I have a 32mb and a 128mb flash stick. I added 2 usb sockets to my xbox controller. When I inserted the 32mb flash stick, it reformated it (deleting everything) and was able to use it as a memory card. The 128mb one made the dashboard slow down, didn't say it was incompatble (which would format it), and the xbox was unable to read it. So the smaller ones probably work, while the larger ones are less likely to work.