We are planning to have a developer + documentation sprint for 2 days just prior to the conference.
The goal of this event is to actually contribute to ERPNext. Ofcourse you can network, but we expect you are willing to spend more than 70% of your time contributing rather than just networking.
If you are planning to come, please add your name by replying to this post. We may request some contribution if the venue / lunch expense goes above our conference budget.
Besides @MichaelPinkowski, the rest of the US contingent (that I am aware of) will be myself, @jhk (John) and @joshreeder. We plan to be there for both days of the sprint, though there will be some serious jet lag on day 1.
The Developer Sprint will be issue/proposal driven. We will soon add a web form where you can submit your proposals for the sprint.
You can look at existing GitHub issues or create new ones for this, tag your teammates and create elaborate proposals around this. Do feel free to create new posts with these proposals on the forum so maybe others can chime in too You can tag the topics with [Dev Sprint].