AppHarbor - Heroku-style hosting for asp.net
blog.appharbor.com
blog.appharbor.com
Disclaimer, I'm an AppHarbor co-founder.
A more likely cause for the lack of cloud-hosted c# apps would probably be, that there aren't really any viable options for c# developers who wants their app hosted in the cloud (Azure isn't really the bee's knees, right?)
Azure is expensive, but its getting better. They enabled full IIS in the latest 1.3 release. Now you can host multiple websites within a single WebRole and map subdomains to each site. Remote Desktop access and full admin rights removed many other restrictions as well.
SQL Azure still has the craziest pricing. $10/gb. Thats why we decided to go the 'NoSql' route and use Table Storage for everything possible.
For example, how will you compete with Table and Blob Storage? Can I instantly turn up/down new nodes? Will you have caching?
The ability to instantly scale up/down is a feature at the core of our business and it will be available no later than our official launch.
Providing various caching options is also ranked highly on our feature list and will be available as an add-on (and paid) service.
hassle
1) Link your homepage. HN allows you to title your submission and we'll forgive a teensy bit of valuable keyword stuffing in your submission if it's descriptive. Your homepage is always a more valuable landing page than a months-old blog post. If your homepage isn't as descriptive as the blog post, change your homepage then submit.
2) Either be at public launch or public beta when you do. Otherwise, you're blowing a chance to capture and on board a huge number of technically savvy people who will help you find bugs and UX issues in real time. (This was exceptionally helpful to us with Dawdle.com back when.)
3) Please make sure your blog has a big honking link to your homepage, not the blog homepage. Make that link an image with lots of tasty descriptive text to goose your SEO to your homepage, which will undoubtedly serve as your main landing page for normals who are Googling and press who wants to link to you.
I'm sorry if I've damaged the marketing opportunities. I was just excited to see them handing out beta invites and wanted to spread the word :)