Obryn
Hero
First off, I'm loving Demonomicon. It's probably my favorite 4e book to-date, unseating Underdark from the previous top spot. It feels like they kept faithful to a lot of the demonic lore going into it, and I'm getting some serious nostalgia. Whether it will live up to the high standards of Fiendish Codex I for 3.5 remains to be seen. 
Second, while it's not much, there's a Balor with MM3 damage on p. 99. Lightning Sword damage got upped from 2d10+10 to 6d10+11. Whip went from 2d8+9+Ongoing 5 (wtf?) to 2d10+10+ongoing 15. Death Burst actually got downgraded a little.
Kinda cool. I'm looking forward to more updates like this one.
-O

Second, while it's not much, there's a Balor with MM3 damage on p. 99. Lightning Sword damage got upped from 2d10+10 to 6d10+11. Whip went from 2d8+9+Ongoing 5 (wtf?) to 2d10+10+ongoing 15. Death Burst actually got downgraded a little.
Kinda cool. I'm looking forward to more updates like this one.
-O