Engadget - Musicians have long needed ways to catalog ideas and capture rough recordings of new material without the anchor that is a full-fledged recording setup. Apogee offers just that with its Jam guitar adapter for the iPad, iPhone and Mac, which allows you to strum your way to a record deal via an iOS device. Whether you're on the road or in your living room, the ability to connect a Les Paul to a mobile device and crank out the demo for your next hit is super helpful. But, is it worth the $100 investment to have recording-on-the-go at your fingertips? Read on to see what we discovered.