The gOS 3 Gadgets is based on the popular and solid Linux distribution, Ubuntu 8.04.1 and you are able to use Google Gadgets for Linux in gOS 3 Gadgets instantly whenever gOS 3 Gadgets launched on startup. The gOS 3 Gadgets gives you over 100,000 possible iGoogle and Google Gadgets to the desktop.
However, you will get a closer resemble desktop applications like Google Documents, Google Calendar and Google Mail launch in Mozila Prism and you will also get the newest release of WINE 1.0 in gOS 3 Gadgets that enables support of thousands Windows software. Discover more gOS 3 Gadgets features and screenshots yourself.
Source: gOS
This really make it look like MAC desktop. Have you tried it to run multimedia files?