Apple Mac OS X provides a clean and easy to use interface and is desired by non-Apple hardware users, we have seen Mac OS X themes and total customization packs for Windows allowing users to get the look on their PC's running Microsoft Windows OS. Ubuntu on the other hand, also features a nice user-interface and there exist many Ubuntu customization packs for Windows.

Instead of hacking your way trying to install Apple Mac OS X on PC hardware, how about a totally free, Ubuntu Linux based complete operating system with sleek and user friendly Apple Mac OS X styled user-interface, minus the much debated Ubuntu sponsored search links (Adware) without the unity shell. Welcome to Pear OS 7, an easy to use Ubuntu based Linux distribution which comes pre-configured with free apps and drivers to allow use of your exisitng PC files, printers, cameras and MP3 players. With option to install and use thousands of free applications.

Want to enjoy the sleek Mac OS X user-interface without installing Mac OS X on your PC, thanks to theme-packs like "Mac OS X Transformation Pack For Windows XP" the same is possible on your existing Windows 7 installation.

Got bored with your old Windows XP interface?, Now you can enjoy Mac OS X Leopard interface on your Windows XP SP2 system using the free "Leopard Mods On XP", unlike many other theme packs this is not just a theme but a full mod changing core system files and behavior.