There's no shortage of iPad styluses out in the market, but most of them don't really do a great deal of justice. And the ones that are good lack something important for the amateur and professional artists alike - which is pressure sensitiveness.
The Jot Touch is about to change all of that. Made by Adonit, the company is already making a lot of styluses using a transparent ball point disc that acts as the tip of your finger. The Jot Touch is similar to those except their latest is capable of sending pressure information to the iPad using Bluetooth connection. It has two buttons, and would allow you to choose between any tools at a click of them.
The stylus needs an app to work with, since it needs to talk to apps that it works with. There aren't many Jot Touch ready apps at the moment, and there are only three at the moment. Hopefully there will be more to come soon.