Yes, believe it or not it works. There are pros and cons...
I've been using my Pod HD500 as a controller with much success so far. It does everything you need however it's a bit much to lug around. Especially the traveling I do. Tonight I'm taking the red eye LA to Boston for a one nighter at the Berklee Performance center.
How does it work?
You need a iRig Blue Board, an iPhone or iPad running the BlueBoard and MidiBridge app. A compatible midi interface. I have a maudio midisport 1X1
The MidiBridge app was key to making this work.
Pros:
1. Very compact light weight. Fits in your gig bag.
2. No cables. The BlueBoard is Bluetooth and battery powered.
3. BlueBoard has 2 exp pedal inputs, cc # editable.
4. Can do program change and/or control change.
Cons:
1. Only 4 buttons, but it has 32 banks. You'll need a strategy for more control.
I'm going to try a Boss FS6 into exp input 1 for stomp on/off and I'll try a exp pedal for vol + wha in exp 2.
2. There is a very slight delay compared to the pod hd. It doesn't bug me so far.
One thing to know if you want to try this.
The BlueBoard app default sends midi to all channels. Change it to ch 1 or whatever. When the Kemper and app is set to omni you'll get 16 PC at once, not good.
I need more time with this setup to perfect it.
Emilio
