Since you don't join IRC anymore, I'll just ask here:
-did you spend any time on the Eax->Efx reverb conversion?
-the AudioContext class should probably expose the Alut.CreateBuffer* functions, else you will break all OpenAL samples that require loading a .wav from disk.
-i really think the naming should be consistent, either Audio (latin: "i hear") and Video (latin: "i see"), or use the english terms. not a mix inbetween. (the latin is from wikipedia :p )
-i've edited the geometry pages in the book to use 0.9.0 enums, should the part about GL.VertexPointer() get it's own page? (it's a bit hidden behind all the GL.MapBuffer() explanation)
-isn't it too early to show the russian translation in the menu already? there's very little translated so far, and noone has proofread it.
-attached is the SM 3.0+ julia set fragment shader, untested ofc. might crash&burn. It *might* work with higher MAXIteration values, if you set the 1D texture filter to linear in the app.