I have been hearing fluctuating RIM internal target release dates for BlackBerry PlayBook OS 2.0 for awhile now. They mostly seem to be somewhere in the week of February 15th though I have heard some outliers. I just received confirmation from a very solid source that RIM is committed & scheduled to launch PlayBook OS 2.0 on February 17th. That seems to jibe with everything else I have been hearing along with the rumor mill.
You have to take any rumor like like this with a grain of salt but I am really looking forward to getting an official copy of OS 2.0 on my PlayBook in less than a month!