Nice idea, would be interested in becoming a customer but you really need a better landing page than that. take a look at unbounce.com as will convert better than the page you have there. plus if you work on the copy a little it will give you a head start from an seo point of view.
Idea: great, execution: no idea?<p>I'm just directed to a Google Docs form asking why you must host me? It kind of implies that you'd rather not host me, but if I have to strong arm you then it might happen..<p>What is the pricing? The details of the hosting? What's going on here?<p>Fair enough you're in beta, but at least give me an idea about why I should invest time in the beta i.e. how is this easier than standard hosting, and what kind of hardware will my app have access to etc.
Beta sounds like you have something going, the form looks like something to gauge interest though, what stage is this at? I would love to have Heroku for .Net and have prototyped bits of automation myself.<p>I don't believe pushing source code up for .Net is going to work as well though as there are too many quirks in the compilation process. An example would be a site I run which uses PostSharp to post process the .dlls.<p>Keen to hear more details about what you're doing.