I tried posting this as a comment on your blog but I was getting errors. BTW, sorry for the delay. My thoughts below:
Here's a link that describes how easy it is to write these little apps:
Here are a few links from Yahoo:
Platform bindings - If you really wanted to see the best integration between web applications and the 770 all you need to do is provide developers with bindings for Ruby. Why? Simple, the the 770 is an "Internet Tablet", right? Well, what better language to support than the language that most web apps are been written on right now - Ruby. Don't believe me? Take a look at the book sale stats compared to Python. Mind you, this is from O'Reilly, the ultimate source for tech books - I bet you have your share of O'Reilly books around. Anyway, take a look:
Here's another comparing it to Perl:
Ruby related to Web 2.0:
And last, but not least - the framework that made it all happen:
Give Ruby developers the chance to "play" with the 770 via bindings. I promise you that you won't be disappointed.
P.S. - I'm looking for my notes on how Instant-on was done for Palm. I'll send it as soon as I find it.