The PlayStation 3 version will see this update before either of the other platforms, mostly due to the VOIP fix, but you can expect to see it arrive on the Xbox 360 and PC within the next couple of weeks.

As it was the case with Modern Warfare 2, Infinity Ward might bring back some “classic” maps from previous MW titles to MW3. Four CoD 4: Modern Warfare maps, Strike, Vacant, Crash, and Overgrown, were remastered for the MW2 game-engine, so it is not too far fetched that Infinity Ward and Sledgehammer Games again would want to “remaster” some their favourite maps and offer them as part of the Call of Duty: Elite Premium’s monthly DLC drops and eventually the bundled MW3 Map Packs.

Are you one of those guys in a helicopter hovering near spawn points in Battlefield 3 (say, an aircraft carrier), wantonly exploiting the game and infuriating players? You may not actually be cheating, but we still think you're the worst. That aside, Battlefield 3 developer DICE is apparently looking to address all cheaters, and not just that guy who ruins the game for everyone with his stupid, stupid helicopter, as the company has posted an ad for an "anti-cheat administrator." The move follows a recent redoubling of DICE's efforts to combat cheating in its latest game release. Said administrator will be tasked with a variety of responsibilities, many of which you'd expect a community liaison to handle, though the list is oddly missing "put up with staggering levels of infantile behavior from legal adults." Can you tell we don't like cheaters?

Source: http://www.joystiq.com/2012/01/30/battlefield-3-dev-hiring-anti-cheat-administrator-to-stop-the/#comments

Modern Warfare 3′s creative strategist, Robert Bowling, discusses panic knifing, quickscoping, weapon balancing, and potential nerf to Type-95. Earlier today, we reported on Bowling’s suggestions on how to deal with panic knifing.

With any game, there are always obnoxious goons who hack, cheat, and manipulate game data and code to gain an unfair advantage. Well, now a group of goons have gone a step further. A group has taken the liberty of spoofing other players' GUIDs and cheating... causing that (innocent) player's GUID to then be banned by GGC, requiring them to go through the appeal process. In plain English, this means that hackers are disguising themselves with other players' GUIDs which means that instead of the hacker being banned, their innocent victim is banned instead.
Here is what they posted on their website:

Infinity Ward’s Community Manager, Robert Bowling, defends the Modern Warfare series against displeased fans and acknowledges other competitors to Modern Warfare 3.

In our continued effort to minimize cheating in Battlefield 3, we recently banned another batch of several hundred confirmed cheaters based on your reports and our player behavior data.
At DICE, we will never tolerate cheaters. Life on the battlefield can be harsh, especially when you’re up against the fantastic flying duo. But it should never be a case of you losing because someone is outright cheating.