Alex - Yes I-Thingies only.
I am sure the issue was something with my router and/or home network. But even ad-hoc i could not get v-control to work. Ad hoc finally worked with Ac-7, so that is the way I went.
I had the exact opposite experience as Featherlight with neyrinck and did not get much help on their forums so I dropped it. I would definitely try the free ones before I spent any money at the APP store.
As an aside, the rtpMIDI software you have to install on your PC for AC-7, also works for most other Ipad midi apps that are available. (there are quite a few.....) You also have to install apple bonjour. (or the full itunes, but I hate itunes so I just installed bonjour)
Once you get it up and working seems pretty stable, only annoyance is I have apple software on my DAW... Arrghhh!