The Nyko Frontman is a guitar controller produced by Nyko for several game systems to be used with the video games Guitar Hero and Rock Band. Depending on the version, its appearance is very similar to the Fender Telecaster (Wii) or the Gibson Explorer (PS2/PS3).
Compatibility for Wii, by game title:
Guitar Hero III: Y
Guitar Hero V: N
Guitar Hero - Aerosmith: Y
Guitar Hero - World Tour: Y
Rock Band 1: N
Rock Band 2: Y
With the addition of PS3 Firmware 3.10 the Frontmans Dongle/receiver was Deactivated due to it being one of many products not up to Standards, However Nyko offer a free replacement receiver if you Email them, once it is replaced the Guitar Works(While in GH mode) fine with Rock Band 3*and presumably other games too.
References
Nyko FrontMan Wikipedia(Text) CC BY-SA