Hey guys, I challenged and passed certification exam for SANS 660 - GIAC Exploit Developer and Advanced Penetration Tester (GXPN) recently.
As with most of my previous GIAC exams, I did a self-study for GXPN as well. SANS / GIAC categorizes this exam / course as 'Advanced' so keep that in mind when preparing.
Exam objective break up list is available on GIAC GXPN site and must be the first place to prioritize study plan. As I see it, there are 2 sections to plan for.