To back up what Liz says, consider the following (pretty much what happened):
RW release was pushed back almost countless times. Every time LWD thought it was almost ready, a cluster of "gotcha" bugs reared their ugly heads, and (having been wonderful about keeping us all updated about their release plans) the release had to be pushed back. This happened over, and over, and over again. Eventually we all basically said "stop over-promising, it's starting to get frustrating" (we weren't quite that blunt for the most part). So, quite correctly, LWD have implemented a policy of only announcing releases when they're actually ready (rather than "just a couple of things to finish").
At a rough guess, LWD were probably anticipating the content market going live sometime in September/October. And then lots of horrible things happened. Just imagine how almightily p'd off we'd all be if they'd told us that, and here we are in November without it. The cries of "but you said..." would be almost deafening.
The current policy of "silence until ready" can be difficult (especially with maintaining excitement for new features), but the backlash from it is nothing compared to failed expectations, and frankly LWD are busy enough that they don't need to waste their time fielding queries from us when they could (and should) be working on the next release.