Adonit Corp. has JotStudio (iTunes Link) for the iPhone and iPod Touch in the iTunes App Store for FREE (regularly $1.99) for a limited time.

Paper had a good run. JotStudio is a collaging and sketching app calibrated for a precision stylus rather than a finger. JotStudio was built specifically to be used with Jot by Adonit; the most precise stylus on the market. Downloading JotStudio is FREE for one week only.