VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
InTouchApp Firefox Extension - Save contacts & data from websites to your phone
foobar2000 - An advanced freeware audio player for the Windows platform.
Cervino - One app for everything you do
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
ArchiviCo - An easy way to store your important documents