Yep! Our company IActionable.com is running on Windows Azure platform. In fact, I'm writing this comment from the Microsoft campus in Redmond. We are attending a Windows Azure Deep Dive hosted this week.<p>My CoFounder and I were both .Net developers in the past and love C# and SQL Server. We are happy with the Azure platform so far. We're using a little bit of everything too. Worker and Web Roles, Queues, Table Storage and SQL Azure. I'd be happy to answer any questions you have.
I'm considering using Azure atm & would love to hear some opinions/limitations. Initial reading is suggesting there will be a lot of configuration to get things going.