Looks pretty sweet, especially the bomb-crafting.

Very nice, I'm getting this. ^.^

that is a pretty looking game.

It looks like a good game, but I don't know if it looks like a good Assassin's Creed game. Land mines and hand grenades deviate pretty far from my vision of what Assassin's Creed is. Then again, so did parachutes...

Finally some good single player footage. The new tools and systems seem cool.

It looks really great, Ezio sounds and looks really old now, it's almost sad
 
Also, I do NOT like Altair's new voice actor, I prefered the cold distant sounding voice from AC1

Looks really good. I have no idea what is happening in the story though. Why are were they playing as Altair?

Something about this formula needs to evolve. Guards have always been a pushover, removing any challenge from combat. I can already picture the back of the box feature text, "Become the most ultimate explosive assassin with bomb-crafting." This is coming from someone who loves this series but hates to see Ubisoft stretch it completely thin to the point of having nothing substantive. Maybe it's just franchise fatigue but this entry feels like filler to me.

Why would I use grenades or bombs or whatever when I can just stab a dude? 

Fucking Altair...bleh 
 
He was such a boring character in AC, did anyone actually want to see more of him? 

I can't wait to play as old Ezio. I really hope that his age affects his movement speed or at least he shows his age by getting out of breath and stuff.

i never understood why his costume became gray and he lost his cape.  i figured that it has to do with the the Brotherhood costume but i dunno.  i really want this game

Huh, not a fan of Altair's new voice.  Looks fun though.

Fucking Altair...bleh  He was such a boring character in AC, did anyone actually want to see more of him? 

I really liked Altair but I can understand why people dislike him, but as Ahmad_Metallic said, that's not Altair anymore, they ruined the character

On one hand Altairs voice has been fixed as its now the proper accent but on the other hand it sounds like they have changed the Voice Actor, considering the fact it takes place before AC1 I'm hoping its the voice of a younger Altair and that his previous voice will return with the new accent as he gets older in the memory sequences.  And in regard to his attitude, this is before AC1 and I imagine AC:Altairs Chronicles on the DS certain events haven't happened I suspect make him the character he was in AC1 he sounds optimistic and naive here.
 
Still I liked what I saw, they seem to have further refined the Brotherhood gameplay which is good.