I was asking for something like this in #startups a week or two ago. I found this as a possible solution, but unfortunately, it only works on mobile safari. Would be great if there was a cross-platform version available.

I posted a question about this on StackOverflow a while back if anyone is interested. I'm going to end up coding my own solution, but I likely wont start for a few weeks. I have a lot on the table right now.

http://stackoverflow.com/questions/652857/iphone-like-slot-m...

This is nice looking. On the computer, this would be a shitty UI, but on a phone it seems quite usable.

One quibble:

You cannot have more than one picker at a time, so the SpinningWheel object is unique and it is created as soon as you include the JS file.

This bothers me. You are missing the point of object-oriented programming if you can only have exactly one of something.