Konami has detailed how its seven-input drum set will be compatible with Rock Band 2 and Guitar Hero: World Tour's kits, which have four and five inputs, respectively. We've been informed that the game will "reconfigure" itself depending on the set being used with the game. For example, instead of seven lines of music, it will adjust to four when using the Rock Band 2 drums and five for GH:WT. The company expects its drums to be compatible with the competition's via a patch issued after launch.

The company has also told us that reports of the game's delay to 2009 only applies to Europe. The game is "still on track for a fall 2008" release in North America. We're sure all the rhythm-game fanboys out there are breathing a sigh of relief ... right? Hello?

With Sony shedding some new light on the sea of plastic instrument compatibility nonsense, we thought it was time to update our compatibility charts for the Guitar Hero and Rock Band series, as well as newcomer Rock Revolution. Introducing the Instrument Compatibility Matrix, version 3.0. We'll keep updating this page as new information percolates out, hoping one day to fill in every square with a green "yes." Until that time, check out our chart skills.

Update: Now with more green care of Microsoft's compatibility commitment.

During E3 we spoke with third-party peripheral manufacturer Nyko about its line of FrontMan guitars and which games the different versions were compatible with. We did a quick and dirty post on what we were told during the E3 madness, but Nyko just sent over the chart above, which, admittedly, is much easier to understand.

For first-party guitar compatibility, check out our Guitar Hero / Rock Band guitar compatibility matrix v2. We're sure to have v3 available as soon as we confirm Rock Band 2, Guitar Hero: World Tour and Rock Revolution guitar compatibility.

After Harmonix's valid attempt at easing tensions over PS3 guitar compatibility issues for Rock Band, the time for détente between MTV/Harmonix's Rock Band and Activision/Red Octane's Guitar Hero is over. Harmonix has issued a detailed statement saying the company created a patch for Guitar Hero controllers to be compatible with Rock Band on PS3, but that Activision blocked Sony from releasing the patch.

Harmonix reiterates in the statement that it believes in an "open standard philosophy of hardware and game compatibility." The company says that such a policy is in the interest of consumers, game developers and console manufacturers and "will only help to grow the music game genre as well as inspire innovation and creativity." Harmonix says that on Tuesday, December 4 it was ready to release a patch approved by Sony so that Guitar Hero controllers would be compatible with Rock Band, but that Activision objected to the release and now Sony is holding onto the patch due to Activision's "continued objection." The full statement from Harmonix can be found after the break. The ball is now quite publicly in Activision's court.

As noted in our earlier story on the PS3's worldwide launch in November, the PSP will drop in price to $199 in the U.S. on March 22nd.

According to an official PR announcement from SCEA, this basic package with PSP, AC adaptor, and battery will also retail for $229.99 CND (for our friends up north).

Highlights include classic PSone games for download onto Memory Sticks, web browser compatibility with Flash, a silver USB EyeToy camera for video and voice-over-IP chat in September, and GPS support for games like Hot Shots Golf as well. Europe will get their basic PSPs for 199 Euros on the same date, while Japan will get a new white SKU on April 15th.

See also:

• PS3 worldwide in November
• PSP-specific page from IGN; second IGN page with other pricing info
  
• New PSP Value Packs revealed [with bundled games for Europe]
  
• Rumor: New PSP to get a built-in camera and 4GB of flash