Hi,
have you seen the new Logitech Arx Control solution?
It's basically a way to use iOS and Android phones and tablets to display and control various stuff of your gaming PC.
The only requirement - besides the phone or tablet - is to have Logitechs Gaming Software installed. It works with all Logitech keyboards and mice that are supported by the Gaming Software.
And, as far as I understand, there's a documented API which allows you to display custom stuff in the app. I haven't looked at it, but I guess it's not too different from the API that they used for their LCD displays.
Do you want to check that out and give us an idea whether you'd like to support that?