Rainmeter is a very cool free and open source desktop customization tool for Windows®. Still running a clunky Microsoft® Windows® XP Home Edition machine? Spruce it up with Rainmeter and and a suite of custom skins and widgets like Omnimo. Set up weather, RSS feeds, system monitors, and easily toggle back and forth from your existing desktop layout. It uses very little CPU and RAM and runs on Windows® XP through Windows® 8 operating systems.
Link — Rainmeter
Link — Omnimo UI 6.0 for Rainmeter