From GlockTalk: http://www.glocktalk.com/forums/showthread.php?t=949312
Glock is coming out with a 4th Generation frame! New for this frame is the noticeably different grip which will have a nice bite to it (skateboard tape fans will no longer want or need skateboard tape) and really nice serrations on the rear of the slide. Something about the frame feels more like the first generation and I felt it was easier to grip up high on the backstrap. They will be starting out with both the Glock 22 and Glock 17 and will eventually have all the Glocks out in this design.
Wow.
Glock is coming out with a 4th Generation frame! New for this frame is the noticeably different grip which will have a nice bite to it (skateboard tape fans will no longer want or need skateboard tape) and really nice serrations on the rear of the slide. Something about the frame feels more like the first generation and I felt it was easier to grip up high on the backstrap. They will be starting out with both the Glock 22 and Glock 17 and will eventually have all the Glocks out in this design.
Wow.