Ok then where is 1280x720? If you look up 720p on wikipedia it defines it as 1280x720 as the standard.
480i, 480p, 720i, 720p, 1080i, 1080p. Theres one stadard resolution for each of these and 1280x720 is the one for 720i/p
come on people HD isnt all that NEW! Look at the setting on an xbox360 or ps3. Most every console game uses 720p or 1080i as their HD resolution. Now before you say a computer is not a console. The whole HD thing has been moving to pc for over a year now. Thus the video cards like the ATI 3870HD and all the cards since. It even has a 720p setting that defaults to 1280x720.
Heres some other games with it just to name a few.
World of Warcraft
Men of War
Call of Duty
Company of Heroes
Red Alert II
Theres alot more that I wont go into but over the last 3 years or more 1280x720 is the standard 16:9 widescreen 720p resolution for HD Tvs. And most developers have caught on to the fact people are using HD TVs and Projectors for displaying their computers. This isnt Cutting Edge technology.