Gulp. This product has been sitting in my review queue for way too long. And, it is a good one: The Griffin GuitarConnect Pro. This $79.99 product lets you connect an electric guitar to an iPhone or iPad using a standard 1/4-inch guitar cable. Even better, it works great with GarageBand. So, GarageBand for iOS users don’t have to learn to use a new app. How does it compare to the iRig? Stay tuned.