15 Months Ago, PS3 News from PS3News says (in Patch: Rock Band Guitar Fix and Song Export Utility to Arrive Thrusday!) This title update will also patch for the use of the Guitar Hero III Les Paul PS3 Controller with RB1 on the PS3. We're excited to release this, as controller compatibility is something we've been working towards for a long time. ...

21 Months Ago, April Carlson from Girls Got Game! says (in Rock Band Patch Announced and Coming Soon) A new Rock Band patch was announced today and should be available for download later this week on both the Xbox 360 and the PS3. Here are the patch details (as listed on the Rock Band Forum):

24 Months Ago, GamesIndustry.biz says (in Harmonix: Activision blocking Rock Band guitar patch - GamesIndustry.biz) Harmonix: Activision blocking Rock Band guitar patch
 UK - Dec 12, 2007
However, when Rock Band was released, PS3 owners were unable to use the Les Paul guitar controller included with Guitar Hero III: Legends of Rock. Harmonix ...

25 Months Ago, Shacknews says (in Rock Band PS3 Patch Adds Guitar Hero III Controller Support) Activision expressly prohibits the use of this Guitar Hero controller with any other game."

An update to the PlayStation 3 version of Harmonix's Rock Band will arrive later today, granting compatibility with the wireless Les Paul controller bundled in the PS3 version of Guitar Hero III...

And Michael McWhertor from Kotaku says (in Patch: Rock Band Fix For Guitar Hero III PS3 Controllers Coming [Unconfirmed]) The Harmonix community manager writes at the official Rock Band forums that a routine patch for the PlayStation 3 version of the game is coming soon, one that will address "a number of items related to guitar controller compatibility." The patch was expected to be released yesterday, but...