The most revealing still frame I could find:
http://modernwarfare2.infinityward.com/?zoom=2&x=-458.5&y=-63&time=84.91533333333334

...Exploding teddy bears confirmed!!

Everyone knew a new CoD was coming out this year and it was going to be a modern warfare 2 already...also we know they always come out in November. I myself am completely fine with waiting until E3 for a real trailer rather than breaking down a pointless teaser that is just a waste of time. Its hardly a huge deal. Exploding teddy bears are awesome though.

why? heres a break down
COD modern warfare 2 will be the shit!
thats all we need to know.

Russins at a US airport and start shooting. Submarines, Scuba Divers, and Snowy landscape. I saw all that. Also mentioned on some other pesons blog the one statue in brazil is shown. So brazil may be an environment, so tropical?

It better have some major game play differences then the last rehash.

The teaser is a lie!!! They are going to go in an entire 180 degrees on us (more accurately, 164 degrees.)

"It better have some major game play differences then the last rehash."

"WilliamRLBaker said:

"why? heres a break downCOD modern warfare 2 will be the shit!thats all we need to know. "

YES!"

i dont think there is anything cryptic in it at first i thought their was with l1, m 1 and 2 flashing up then all appearing together apart from the l1, but those were just the floors in the lift/elevator... in the lift i was bored enough to see that the time on the blokes watch was 20 past 9, again pointless, its said in the lift remember the russian, other than shit like that which seems cryptic but isnt, somthing bad happens in an airport, and and oil rig would appear to get blown up, then at the end theres some russian but unfortunatley i cant translate, anyone out there speak russian?

EDIT: and going back to what jeff pointed out in his post with the teaser, that the game has only been referred to as modern warfare to by those assosciated with it and not cod:mw2 is because call of dty and modern warfare are being split into two seperate franchises, which means im guessing treayarch or another activision developer will stick with the call of duty franchise in ww2, meanwhile infinity ward can stick with modern warfare as their own.

Let's not

I rememember there being this massive 300+ page thread about the halo 3 odst trailer and another thread about the edge acceptance speech and all the assumptions were wrong...

"why? heres a break downCOD modern warfare 2 will be the shit!thats all we need to know. "

"10MP said:

"It better have some major game play differences then the last rehash."

Did you just call COD 4 modern warfare a rehash?"

"10MP said:

"It better have some major game play differences then the last rehash."

Did you just call COD 4 modern warfare a rehash?"

"DirrtyNinja said:

"10MP said:

"It better have some major game play differences then the last rehash."

Did you just call COD 4 modern warfare a rehash?"

it was cod2 with perks and automatic rifles"

The pictures of perks seem to indicate the return of Stopping Power.  I'd bet money that the perk immediately to the right of SP is a perk that makes you sprint or run faster (It's a picture of a foot with wings, ala Hermes) and it looks like the third has something to do with knives, I have no idea how they could make a perk related to knives any good.

Oh look. Another one of these threads.

After watching the teaser trailer, all that I can think of is that it looked kinda like a spy game. Like a Splinter Cell that would have a bigger focus on action ...

Then again I aint a COD fan ....

People at IGN think they saw Brazilian landmarks in the background.. Either way I don't want to wait that long. ;__;

There is a much MUCH better version of this thread here, with screen shots and everything.

http://www.giantbomb.com/forums/general-discussion/30/what-i-think-i-see-modern-warfare-2-teaser/235997/