Apparently the German website made contact with some Deutsche Telekom representatives who informed them of the November 9th release date.
Meanwhile, German blog, iFun, provides a conflicting report. Instead of November 9th as Inside-Handy.de are claiming, iFun is claiming a release of Friday, November 12th. They discovered Apple will be pushing new Carrier Updates on November 12th, so they figure there may be a chance iOS 4.2 will be released the same day.
iOS 4.2 will bring many features already on iPhone and iPod Touch to the iPad, such as Multitasking, Folders, Game Center, and the enhanced mail application. iOS 4.2 will also introduce new features, such as AirPrint printing, AirPlay steaming, a function to find text on a webpage, and various other minor enhancements.
[via: IPhone-Hacks]