"We have been working closely with Neversoft and Activision, Harmonix and Konami to ensure that PlayStation 3 guitars and drum sets will all feature a basic level of gameplay compatibility," Shorrock wrote on the PlayStation.Blog.
The director explained that both the drum kit and guitar from Neversoft's Guitar Hero World Tour will function with Harmonix's Rock Band 2, and vice versa. Drums and guitars from both titles will be compatible with Zoe Mode's Rock Revolution, while Rock Revolution's drum kit will work with both Rock Band 2 and Guitar Hero World Tour.
The director further noted that microphones from SCE London Studio's SingStar will also be compatible with Rock Band 2 and Guitar Hero World Tour.
"We're still working hard to ensure compatibility between the Guitar Hero and Rock Band titles currently on the market," Sherrock added. "We hope to have an announcement on that shortly."