In an early demo of Tizen OS on a Samsung phone, the new OS looks a lot like Android -- and is clearly a long way from prime time.
Linux-Mandrake 8.0 is easy to learn and use, with a toolset that should please advanced users and novices, in particular.
Red Hat 9.0 is a boon for those who already use it, but it's too expensive to warrant a switch from Windows. Try SuSE (or the free Red Hat) for a better mix of price and features.
Though its new user features have mixed appeal, Tiger's technological changes and speed improvements make this an enticing upgrade, especially for those who passed on Panther.
Despite its many annoyances, XP is a worthwhile upgrade. Unless you need corporate administration tools, XP Home Edition should suffice for most--even for small businesses. Enterprise customers, look to Professional Edition.
We recommend Small Business Server for companies with more than 50 employees, but you'll have to purchase additional server licenses to do so. Smaller companies should consider rival server suites and outsourcing and open source solutions.