Windows Marketplace plans to launch with 600 applications available for download. While it's an uphill battle to challenge the App Store, this is certainly a great start.
Webupo™ is the first online marketplace for web services with cross- browser support. Our bookmarking feature is based on one-click self-extracting executable files and currently runs on Micrsoft Windows operating systems. Webupo enables users to bookmark useful web applications found on the Internet in an innovative and convinient way.