Okay guys after a lot of patience RIM decided to launch OS 6 for Curve 3G 9300 and Bold 9700 than Torch and Bold 9780, but for this you have to thank AT&T because they pushed RIM to release it officially, but no love was shown to Pearl 3G 9100. It was available for download before a lot of time.
We got a picture in which Pearl 3G was running on OS 6
This means that OS 6 will also be released in some time for Pearl officially.
People holding an Curve 3G 9300 or Bold 9700 running on AT&T can download OS 6 from here.