Calabash, I don't think anyone's skepticism about the release is directed deliberately at you, so definitely don't take it personally. XP has talked about the release date in the "other forum" a few times now, over the course of more than a year, and its been pushed back every time. So I think everyone is just fed up with this and will believe it when they see it. Most recently, it was supposed to be released last fall, then they changed it to the winter, then it was first quarter of this year then... they went quiet... I certainly hope it releases at the rally... I've been excited about it for nearly a year now.
I've been a developer in the software industry for 13+ years and I've seen releases flop and dealt with fall out from them. XP seems to have done a very poor job marketing and managing information for this release. They released information about the software\hardware WAY too soon, when the product was not ready yet. They shouldn't be telling us anything until its through their quality assurance dept and ready to ship. Then they can tell us about it, create a buzz, and reap the rewards with increased sales while its hot. As you can see many peoples attitude about the v4 release is "yeah right! I'll believe it when I see it"... which is what XP created by releasing information way too soon.
So lets hope this is the last "release date" and it actually comes out... and lets hope XP learned from this marketing mistake and doesn't tell us about the next version until its chiseled in stone and ready to roll.