blueyes80 open source

Released version 1.0.0 of VLC Media Player, the popular multimedia player free, opensource and multiplatform.
Numerous new in this version:

Support HD (codec for AES3, Dolby Digital Plus, TrueHD, Blu-Ray Linear PCM, Real Video 3.0 and 4.0);
customizable toolbars;
support for new formats such as Raw Dirac and M2TS;
support for frame-by-frame to the video in fullscreen scaling.

Videolan [...]

Released version 0.8.6f VideoLAN, one of the best player audio / video platform in circulation that does not require external codecs. What is new in this release relate mainly to the resolution of problems affecting the stability and security. Absolutely recommended upgrade.

SMPlayer is a new media player based sull'engine the famous MPlayer, which is able to play more audio and video formats known without need of external codecs. SMPlayer is available for Windows and Linux.

Available free at the Adobe Flash Lite player for Symbian and Windows Mobile 5.0 (only after registration).
Here is the link http://www.adobe.com/devnet/devices/.
(Source MobileBlog.it).