Steampunk epicness. Now this looks really interesting.

cool,i enjoyed that

Looks interesting, hopefully its not as mediocre as Rouge warrior, Wet, Brink, Hunted: The Demons forge. Rage was ok and New Vegas is underrated.

Bethesda's in house studio's games scream the best, but as attyou said some of the games they publish are very average. The concept looks fresh. This is a new IP right? In that case, it beats out any sequel #xxx.

lots of screenshots on http://www.dishonored.com/
lots of first person knifing... feels like Thief.. which is good

I think the producer worked on both Bioshock and Half Life franchise. A bit of mixture of both it seems. Can't go wrong unless they try.

Graphics look on par with that samaritan demo by epic. Hopefully this isn't a tech demo as well.

From the trailer alone, it looks fantastic.

Looking at Arkane Studios' history, they made Dark Messiah of Might and Magic, which was a reasonably good game, and apparently provided design assistance for BioShock 2. Their first game, Arx Fatalis, was also received pretty well, averaging around 80%.

So, it could work. Hopefully Bethesda's support will help them make the best game they've ever made.