I certainly think less of companies that require me to tweet about their product before I've used it, just so I can jump up higher in the queue.

On top of that, I've had it happen twice that I did what I was supposed to, and I did -not- get access.

So I've really, really soured on the whole thing. At this point, I only pay attention to people who have an actual product that I can actually use. Every else gets ignored.