yeah, I have a Cube 20XL that I practice with all the time. Love it...but I want something small that will fit in a case, and I can use headphones with... iphone/ipad options are cool, just have not found the "one" yet...
I use iRig all the time but I use it with Garage Band. The amps with Garage band are ok and the last update helped clean up the noise and feedback issues. With higher gain models you need to use the built in noise gate.