iOS 4.2.1 Untethered Jailbreak for iPhone 4 and ATV2

• iOS 4.3 is nearly out soon and tethered Jailbreak for iOS 4.2.1 is already out for quite sometime
• However, most of us (including myself) has been waiting since Christmas last year for the official release of Untethered Jailbreak iOS 4.2.1 but until today we are all disappointed.
• I was hoping to really use Airplay with my iPhone and Apple TV 2 but without iOS 4.2, I am unable to enjoy that new feature.
• However, a recent news mentioned that a solution using Redsn0w 0.9.7 for untethered Jailbreak will be coming out soon.