A: 

It sounds like you're looking for something already built, which I haven't seen, but it looks like you could build one by using YUI's Carousel Control plus Animations, as this section on the carousel control page explains.

Good luck!!

carolclarinet
That's not a bad suggestion. How would one apply that style to a select box though? I think the better route to go is to re-style a vertical slider like is often found in jQuery. I haven't delved into a solution met, but I'll post an update here if I ever complete one.
sjstrutt
+1  A: 

Hi:

ComponentOne may have what you're looking for. Check out the C1 Studio for iPhone at http://www.componentone.com. It's a suite of ASP.NET controls which mimic the Native look and feel of iPhone UI elements.

Yes, Studio for iPhone has exactly what you need. Check out PickerView, which is included in the studio.http://www.componentone.com/SuperProducts/PickerViewiPhone/
Banzor