Isn't [Web app] access public enough for a mobile terminal where operators interests do matter, although perhaps not as much as operators constrain it to today?
It restricts one critical component: the iPhone cannot keep a secret. I
don't mean that your data isn't safe---I'm sure Apple's put significant
effort into keeping secrets in their native apps, and that the SSL/TLS
code is well done. I mean that the web apps I can write for an iPhone
cannot behave as principals in cryptographic protocols. I can't write
an SSH client, for example, or a protocol for any instant messaging
system whatsoever. The only way to do such is to run the interesting
protocol client remotely, and provide a web interface to access from the
iPhone. That unnecessarily involves a third party.
As you say, the iPhone is a mobile network terminal---but its
capabilities as a peer on that network have been crippled.
I also cannot write an editor or viewer for locally stored data---that's
a problem related to secret keeping and to the origin-only restrictions
on JavaScript.
-Brian
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Brian Sniffen bts@alum.mit.edu
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R. A. Hettinga