I also use Dropbox for my work files between my Dell laptop, my desktop pc at work and my PowerBook at home.
This might be a nice alternative for sharing data. You get a small amount of space for free, 2GB, but can upgrade for a charge. They have an iPhone app, and the forum says they are working on an iPad app, so in a little while you might have another option.
FYI - I did not try the iPhone app as i figured I would wait fhb the iPad one.