I see that Powerset have just started publishing their business models, and "This first set helps a company that intends to index the web whether it is better to purchase, lease or create virtual servers on Amazon EC2."
Thinking of Amazon, they've announced FPS (Flexible Payment Services) to go with their S3 (Simple Storage Service) and EC2 (Elastic Compute Cloud ). There's less and less excuse for the intrepid developer with a dream not to have a go.
Until you read this by the founder of hireahelper.com, in which he describes how he designed the entire site and spent $3,700 getting a friend of his in Pakistan to code it all.
So being a developer is now probably a handicap to anyone thinking of starting something up. Ruby Tuesday was right: "catch your dreams before they slip away".