Yes.. But as I'm taking niche applications to start with, I don't see there being heavy demand for them if I put them up on the store.
Some more mainstream ideas...
One "out of the box" app that should be ridiculously easy to create is a Contacts app like that included on the simulator. I find it irksome to have to go into the phone app to get to Contacts just to add them (or call or mail them). Should have been a separate app (and my be a feature of the 2.0 update of course). Given the whole contacts management system is a pre-existing component, it should be trivial to create a container app into which it can be dropped.
Another "fun" app would be a "tape recorder". Looks like most of necessary stuff is there. What would be real nice would be the ability to record into the iPod file store and synch back to iTunes. Record memos or those "interesting" phone calls.
And the final - the Portable Hole. Wireless file transfer to and from other devices. Nothing fancy (though I would love to be able to save attachments off e-mails or attach stored files as well). Just a little something to replace the memory stick I use currently to move files from home to work and back again thanks to the the very restrictive company e-mail policy making it impossible (yes - I know they don't want the plebs transferring files all over the place, but as a developer that is actually a requirement of my job but the only way to get software to the customer in a timely fashion is to use my personal e-mail because the company account stinks and I have better things to do than call up 20 timed a day the jobs-worths who "support" the system to get them to let a new test release through the filters because they refuse to provide an unblocked account).
Of course somebody will probably beat me to getting these sorts of things done 😉
I want a port of the app on the MacBook/MacBook Pro that used the sudden motion sensor to make light saber noises too. With its accelerometers the iPhone will be a natural.