I've recently wrote about this year's SIGGRAPH (scientific conference about computer graphics) and Assembly (demoscene party). Another 3 interesting events took place recently, so it's worth looking for information about what have been shown there.
1. QuakeCon (August 12-15, 2010, Dallas, USA). It's a huge LAN party dedicated to id Software games, but they also show some new stuff there. This year it looks like the highligh was Rage, including iPhone version presented by John Carmack himself.
2. GDC Europe (August 16-18, 2010, Cologne, Germany). It's European kind of Game Developers conference. List of all sessions can be found here. There were not many sessions about programming, comparing to other categories and I can't find any slides shared online. I wish Ke-Sen Huang gathered links to materials from GDC just like he does with purely scientific conferences...