Senso,
You have read my mind. I've been thinking about avrstudio for a while, and how to use the chips beyond the arduion environment. I just subscribed to your blog (what's that mean?). I'll be reading your complete post later today.
Can I inquire your experience with arduino IDE and avrstudio? I only know arduino. My C and asm background will hopefully help me with stepping up into avrstudio world. Can I still use some Arduino functions and libraries?