The Griffin StompBox gives you four assignable stomp switches and an expression pedal input for taking proper control of wah effects. We're excited!
At least we would be if it worked with anyof the major modelling apps. So far, you have to download Frontier's iShred which, while good, requires you to buy most of its models once it's installed.
StompBox is a great idea, and it's very well made. It also comes with Griffin's GuitarConnect cable. Developers: take note!