The newest version of Windows 8 brings you some updates to the Windows Store. The main changes are:
– Improved navigation
– Improved app management
– Listings of Desktop Apps are finally here. The actual downloads will not be available until the vendor actually releases them.
– A lot of new Apps available for download
– Policy additions and revisions
Read more about it at the offical MSDN blog: http://blogs.msdn.com/b/windowsstore/archive/2012/05/31/windows-store-for-release-preview.aspx