Check out PayPal, a generaly e-commerce app currently out for the Palm
(and apparently a web-phone version is coming too). I personally find this
intriguing, as you don't have to have internet access at the time of the
transaction, but have to wonder how solid the encryption is and what
methods people will come up with to cheat the system (ie, hard-resetting
their device after a transaction and before reporting the transaction to
the PayPal server). Apparently, there have been earlier e-wallet
applications which failed, but I haven't found links to any of them. In
any case,
the PayPal website
http://www.paypal.com/
and an article on it
http://www.wired.com/news/news/technology/story/20958.html
Michael