Jhieminga - the MobiLite gadget shown in your link is similar to the one I have, which is giving some trouble at times, not 100% reliable now. When new it did precisely what I wanted it to, quickly, now it is a bit hit and miss as to whether it connects to the iPad. I can get a message that the WiFi signal is connected but it takes ages, and sometimes not at all, to display the data from the USB stick. And it is only Read Only, no editing possible, still, when needing access to passwords captured on a USB stick hanging from my keychain - invaluable.
Ain't technology wonderful - when it works. Anyone for pilotless aircraft ? Pax address system message ..... " Don't worry, sit back and relax in the knowledge that nothing can go wrong, go wrong, go wrong, go wrong."