Apple Insider has an article on a recent patent that shows a new ipod without a click wheel. Could this be the new iphone? images in the link below.
Link Apple Insider
In one of the design sketches, the Click-Wheel has been replaced by a keypad layout that strongly resembles a traditional mobile handset (or cell phone). Just below the nano's screen is a circular navigation pad, flanked by two input buttons (traditionally these are the "connect" and "disconnect" buttons on a cell phone). Below these controls is a keypad layout consisting of what appears to be 12 numeric keys, which also coincides with the keypad layout of traditional cell phones.
Link Apple Insider