While we launched this product a couple months back, the PR launch for WebStore is today. Will be interesting to see the public response to it.
WebStore is the product/program I managed for over a year, and WebStore is a complete rewrite, taking advantage of AJAX to deliver a great user experience. It uses Amazon Web Services (ECS, S3, CBOP) as the underlying technology, which means any developer could build a similar offering.
Can't wait until my current product hits the market. :)