Is anyone REALLY launching at Techcrunch50?

So like a lot of people, I've been trying to check out a few of the companies that are launching at Techcrunch50. Unfortunately, what I've discovered is that anything I'm interested in is still in "private beta", which in laymen's terms means "screw you unless you know someone here or get lucky".  For some of these companies, the one time I really hear about you or even think about you will be as a result of your participation in this conference.  It severely bums me out (as an average joe) that I can't actually give your product a spin and see for myself the beauty of what you just spent a ton of time and prep selling to a huge audience.

Is there any better way to do this?  It just feels really disappointing though I can understand that it may be necessary for the company in a number of ways.  At least release some screenshots or a demo or something.  Is anyone else bothered by this?  Just doesn't exactly seem like a "launch" as much as an announcement.  The companies I'm interested in looking at include:  Grockit and OtherInbox.  If anyone out there can hook a brother up, please let me know.