I'm looking forward to SIGGRAPH 2011 next month. If anyone wants to meet face to face at SIGGRAPH to discuss OpenGL Insights proposal ideas, please email me, firstname.lastname@example.org, and we'll setup a time. My SIGGRAPH schedule is getting packed, but this project is a top priority for Christophe and I, so I will do my best to accommodate everyone.
If you won't be at SIGGRAPH, you can email us any questions or just go ahead and submit your proposal using the instructions in our Call for Authors. We have already received many great proposals, and are looking forward to many many more!