The new and UPCOMING CrossPlay guitar adaptor for Wii/PS3 will allow you to EASILY to turn your Wii Guitar Hero guitar into a 2.4GHz Wireless guitar for Guitar Hero/Rock Band PS3 and Wii. All you have to do is snap in the Cross Play wireless adapter into you Wii Guitar Hero controller and then just select PS3 or Wii and Rock Band or Guitar Hero and you're away! The cost of such freedom?  Datel's new adapter works with existing hardware and is only a fraction of the cost with support for the PS3 tooFeatures 

• Unlock the potential of your Wii™ Guitar Hero™ guitar
• Simply snap in the Cross Play™ wireless adapter
• Turn your guitar into a 2.4Ghz wireless guitar for Guitar Hero™/Rock Band™ PS3® and Wii™
• So easy to use - Simply select PS3® or Wii™ - Rock Band™ or Guitar Hero™ 
• 100% Unofficial