Paul Graham has an essay basically saying that a startup visa would be great: http://www.paulgraham.com/foundervisa.html
He should probably be informed of the startup visa drive mentioned in this article, given the following extract:
If you're a startup investor, and you support the goals of the Startup Visa proposal, we'd like you lend your name to our efforts. You can read about the latest iteration of the proposal at StartupVisa.com. If you're willing to publicly sign on to a letter of support, please get in touch. If you'd be willing to talk to the press about your support, please leave a comment here as well.
http://news.ycombinator.com/item?id=527681
But relatively few HN users are actually founders overall -- there have been polls about that too. Besides, there's no reason to assume that most non-US founders are necessarily looking to move to US.
For what is worth: I'd likely move to US for a job if I could get a work visa. On the other hand, if I do decide to start a company then I'd be just as happy to do it in Japan (where I live) or in Brazil (my home country).
I hope some of the startup stories submitted there will be posted publicly - I've been trying to dig up information on this on the web in between frantic development of our proof-of-concept, but there's little useful information I could find. It seems that everyone who has done it and written about it has found some special loophole or trick that happened to apply to their specific set of circumstances.
A startup visa is certainly something that I would benefit from; the current situation seems pretty kafkaesque, and moving to the valley would probably give our startup a massive boost. I guess we'll have to find our loophole - for us there's no point waiting for politics to make things better. (after all, if that was a promising approach we wouldn't be trying to move to the US)
It is hard to imagine a scenario where it could be used other than an already successful company from abroad willing to relocate to the US by pitching their already viable product to US VCs (by coming here on a tourist visa).