Windows 7 vs Ubuntu 10.04
 

While the occasional need to resort to a command line interface, the odd glitch, and the incomplete support for popular pieces of hardware such as the iPhone make it difficult to recommend Ubuntu 10.04 as an outright Windows replacement on your main home PC, we’d have no hesitation in endorsing it for dual-boot or secondary PCs.

http://www.pcpro.co.uk/features/3611...s-ubuntu-10-04