Maemo

Maemo is an open source development platform to create applications for Nokia Internet Tablet products like Nokia N800 and Nokia 770.
Maemo is meant for developers with personal or commercial interests in developing software for handhelds like Internet Tablets. Maemo software and developer community website is contributed to this audience and operated by Nokia.

Users and developers can look forward to lots of multimedia improvements in Maemo 5. One of the biggest infrastructure changes is the addition of PulseAudio (PA), a cross-platform open sound server that is network-transparent and supports some really nifty mixing featuresThere are many scenarios in which these abilities could be useful on a tablet device. For instance, PA would allow a VoIP application to programmatically mute a music player application when the user initiates a voice call.

At a higher level, Nokia's new Midas framework will simplify the development of multimedia applications by providing developers with a rich API that brings together a lot of media-related functionality. Applications will be able to use Midas to manage and share playlists, interact with metadata, and tap into the local filesystem media index.
The platform improvement that will have the most visible impact on the Maemo user experience is the inclusion of Clutter, a powerful graphics framework that enables development of rich user interfaces. This will be leveraged for aesthetic improvements, visual effects, and heightened usability