I give up on touchosc, too hard to set up, I failed trying to make it talk with Pure data.
I bought V-control instead, the version 1.2 has a Cubase template. It’s tied to the Hui protocol and it’s a bit pricey but works fairly well for my needs. It’s far from perfect and maybe not as powerful as touchOSC but I like it better than my BCF 2000 already.
It’s pretty straightforward to set up if one follows the user guide and the FAQ on their website. I have a PC with W7 64 bits, i had to download a library package from Microsoft and disable Bluetooth on the Ipad and that was it. It needs a little software that runs as a background task while using cubase.
I use a D-link Wifi usb adapter to make my desktop PC wireless and V-control works nicely via wifi, I’m pretty satisfied so far.