I think there were about 15 vehicles, by the end of twilight. I have never seen so many there.
The Mary Rose had to setup near the road, it was so full.
Sorry for the image quality, unfortunately, this particular tablet doesn't have a great camera. Still, you can see most of the field.
I think 2 or 3 more vehicles may have arrived after this photo was taken.
Sue and I left at around 23:30, and everything was soaked due to the dew. I don't think I have seen it so bad up there before. The wind had stopped by 8pm, so that probably wouldn't have helped things.
Still, the seeing was quite good, and we had quite a celestial feast.
Geoffro, the link you want for the wifi controller is:
http://astrodevices.com/products/NexusS/NexusS.html