Lubuntu 12.04, an updated version of the official Ubuntu sub-project showcasing the lightweight LXDE desktop, has been released. Lubuntu 12.04 'Precise Pangolin' is finally here. Features: based on the lightweight LXDE desktop environment; PCManFM 0.9.10, a fast and lightweight file manager using GIO/GVFS; Openbox, the fast and extensible, default windows-manager of LXDE; LightDM, using the simple GTK+ greeter; Chromium, the open-source variant of Google Chrome; based on Ubuntu 12.04 LTS. Improvements since Lubuntu 11.10: a new software center, optimized to be lightweight, for easy installation and removal of applications from your system; new theme; Blueman is now used for managing Bluetooth devices.
Lubuntu is a fast, lightweight and energy-saving variant of Ubuntu using the LXDE (Lightweight X11 Desktop Environment) desktop. It is intended to have low-resource system requirements and is designed primarily for netbooks, mobile devices and older PCs.