Got my new etherwave std about a month ago.
Soldered in the espe01 today. (Thx thierry and wilco!)
I must say I was a bit reluctant to tamper with it; seemed odd to mess with something so new. Usually when I take apart things and apply the soldering iron, it's cause something's broken.
Good news is, it worked, and was a pretty simple install. Bad news is it didn't turn me into an instant theremin virtuoso.