For me V-Control was also by far the easiest to set up. Not to mention it does a whole lot more than any of the others I've seen. I also have TouchDAW on my Android and while it is definitely the best option for that platform, there is really no comparison.

I like Lemur too as a remote controller but mostly for editing synths or doing weird stuff. As a DAW controller I don't think anything currently matches V-Control with its extensive bidirectional communication and V-Window.

+1 on installing just Bonjour btw. Worked fine for me.

EDIT:
Just mean to say it's definitely an app to check out for those who know TouchDAW and have or are planning to get an iPad (Mini).

fireberd
I tried out the free version.  I wasn't impressed with the free version and the program that you have to install for the wireless interface requires the PC to be on line.  I didn't like that and rejected it. 
 
I have a Frontier Tranzport but have been having some flakey problems and looking for a potential replacement in case the Tranzport dies and the reason I tried  the Nyrick.
 
 

No, it doesn't require the PC to be online (as in, connected to the Internet, if that's what you mean). It requires a LAN network, so you just need to create one with no Internet connection, disable the Internet connection and antivirus software, enable the new connection, connect the iPad to the new network, load up the Ney-Fi software on the computer, and away you go. Pricey, but it works very well with Sonar.   

fireberd
I tried out the free version.  I wasn't impressed with the free version and the program that you have to install for the wireless interface requires the PC to be on line.  I didn't like that and rejected it. 
 
I have a Frontier Tranzport but have been having some flakey problems and looking for a potential replacement in case the Tranzport dies and the reason I tried  the Nyrick.
 
 

No, it doesn't require the PC to be online (as in, connected to the Internet, if that's what you mean). It requires a LAN network, so you just need to create one with no Internet connection, disable the Internet connection and antivirus software, enable the new connection, connect the iPad to the new network, load up the Ney-Fi software on the computer, and away you go. Pricey, but it works very well with Sonar.   

Multiple posts! Sorry. Not trying to get the post count up!

you can also go ad-hoc network (no router) and connect ipad straight to PC wireless.  (lowest latency, but cuts off all other wireless access....though when you are recording this is not a bad thing)
 
V control and AC-7 support this.
 
JR
 

auto_da_fe
you can also go ad-hoc network (no router) and connect ipad straight to PC wireless.  (lowest latency, but cuts off all other wireless access....though when you are recording this is not a bad thing) V control and AC-7 support this. JR 

Yes, I'm doing that (maybe I didn't explain correctly) using a USB LAN adapter. Only the iPad and the PC are on the network.