Desktop calendar Rainlendar Free for Windows, Linux and Mac OC X (review ENG and EST)

More info in here:

http://arvutiturve.wordpress.com/2011/05/22/kalender-arvuti-ekraanile-%E2%80%93-rainlender-lite-windows-linux-voi-mac-os-x-ile/

Rainlendar is a customizable calendar application which stays out of your way
but keeps all your important events and tasks always visible on your desktop.