VLC is a free, Open source, cross-platform multimedia player, supports many audio/video formats, adding subtitles, audio conversion, many user interface skins. and many streaming features.
VLC is free opensource applications for playing multimedia files and working as server for streaming. and there a really cool feature available on this application to convert multimedia
Maemo 5 is open source operating system, this platform working on many devices such as Nokia 770 internet Tablet, N800, N810 internet tablet, and Nokia N900. Maemo platform developed