Maemo is a software platform developed by Nokia for smartphones and Internet Tablets. It is based on the Debian Linux distribution.
The platform comprises the Maemo operating system and the Maemo SDK.
Maemo is mostly based on open source code, and has been developed by Maemo Devices within Nokia in collaboration with many open source projects such as the Linux kernel, Debian, and GNOME. Maemo is based on Debian GNU/Linux and draws much of its GUI, frameworks, and libraries from the GNOME project. It uses the Matchbox window manager, and the GTK-based Hildon as its GUI and application framework.