Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great OS, also multilingual

I've been using Macs since System 7 in the early 90s and this is certainly the best one ever. Yes, it has all the great features the other reviewers have covered, but let me highlight a couple that I like that often don't get reviewed:1) It's multilingual. I've been learning Chinese and Leopard comes with a fully capable Chinese version out of the box. No need to buy a special version. You can easily type in Chinese in any application by changing the keyboard type in the International control panel. If you want to see menus and such in Chinese you can do that too.2) It's very friendly for sight-impaired. My vision is good, but I've been very impressed with the built in VoiceOver utility. Once enabled, the OS accurately reads back words as you type and other text on the screen as you hover over it with the mouse. It's very fast and accurate -- this should be a boon for anyone who has trouble reading text on their monitor.