I am going to do a bit of a shoot tomorrow and was setting up my gear tonight. For the first time i was testing out my Zoom H1 for use with the GH2. Sadly my adapter cable, standard sized that worked with my Canon 550d doesn't fit the Panasonic GH2. I wondered what this port was. Is it just a standard 2.5mm cable instead? I'd like to find an adapter to let me connect it into the standard mic and line outs that are available.
Sadly I also discovered that my recorder hotshoe mount wont work well with my Zoom H1 as its cheap plastic tripod mount hole just stripped itself as i tried to screw it in, very frustrating!!
The thread on the Zoom is indeed terrible. The only time I ever want to see a plastic thread is on a coke bottle! I've always wondered if it was possible to disassemble it and replace it with a brass thread instead. You might be able to glue something in place.