Footage from webstock, lincoln, UK has been uploaded. It's top of the news pages on his official website here: JonGomm.com - News
So it doesn't get lost when the news page gets updated I've posted the link to the video too.
Viddler.com - Jon Gomm-long - Uploaded by Webstock
There's about an hour and a half of it. Not had time to see much yet but I've never seen him play a bad gig. Enjoy!