Here's a selection of threads containing Remote Users thoughts on network driven applications using the internet tablet platform - there are no doubt others that may be more relevant/interesting...

The Internet Tablet could be Sun's iPod
http://www.internettablettalk.com/fo...ead.php?t=1873
(Unfortunately the article referenced by RogerS has disappeared)

Point of Sale
http://www.internettablettalk.com/fo...ead.php?t=1099