Link: http://allmyapps.com/Allmyapps is the 1st Application Store for Windows - Thibauld
They have a desktop application, which I haven't had the chance to test yet. If could be interesting and if they generate enough user interest who knows what could happen to this fairly new startup company.
Source: http://allmyapps.com/blog/2010/12/16/wh ... allmyapps/