How does the digital wallet connect to the camera ? USB ?
From what I gather it has a PCMCIA slot into which you insert a
PCMCIA convert for your particular memory type. It does a quick copy of whats there, and then when you get home a USB connection to your PC.
The main differance as far as I can see with the newer ones is Firewire, which is useful as they are also available in much bigger capicities.
Can you upgrade the HD's in them?
No idea, as they do offer them in various configurations it would be easier on them not to have anything funky which would stop that.
I'd be intrested in hearing of any ones experience with them as I would be intrested in getting one when I do buy a digital camera - hopefully later this year. As they do seem to be much better value then a stack of memory cards/sticks.