End of June. Right. I helped a friend move ($$) to California, which put a hold on a lot of things. I am looking forward to getting started on this. With ASUS announcing the new laptops with gtx1070 graphics, I believe the wait will be worth it. I expect to place my order within 4 weeks, so starting the book around the end of September is a more realistic time frame. I will be purchasing some games to get an idea of what the OpenGL game capabilities are as I would eventually like to participate in a gamejam.