Mac OS X Server costs 5% of what it cost just three years ago. Whatever your needs and whatever the software’s shortcomings, this is hard to ignore. Leopard Server cost $999 for an unlimited-client license, Snow Leopard Server cost $499, and Lion Server costs $50.

For this reason alone, Lion Server will (and should) attract the attention of people who have never been in the market for server software before - home users, in particular - but it has to do so without alienating the business and education customers who currently rely on the software. These are Lion Server’s challenges: is there a real point in having it at home? And as a comparatively-dirt-cheap App Store download, is it lacking in features and power compared to previous versions?

Apple hasn't exactly paid a ton of attention to Mac OS X since the iPhone came out. There, I said it.

This was obvious even in the lead-up to Leopard in 2007, when Apple delayed that OS's release from a spring timeframe to October so that they could get the iPhone out the door. Since then, we've gotten Snow Leopard (a "no new features" release that did a lot to optimize the platform at the expense of aging PowerPC Macs) and a long string of point updates that have done plenty to polish the OS but not much to advance it. Using OS X today is fundamentally much the same as it was four years ago, though we're doing it on hardware that's four years faster.

Lion, originally unveiled in October of 2010, is Apple's attempt to get "back to the Mac," which when translated from Apple into English means that the company wanted to port some ideas and some functionality from iOS into OS X, which parallels iOS's journey from a touch-driven iPod interface to an increasingly OS X-flavored standalone OS. With Lion, Apple wants to do for its Mac software what it did for its Mac hardware with the MacBook Air - bring concepts people like in tablets to full-featured computers.

One of our goals with a Lion review, then, is to separate the actual useful features from the fluff - what has OS X borrowed from iOS, and does it really improve and make sense for the platform? What functionality feels grafted-on, and what feels like it's been missing from the platform for years?

Another important goal will be to determine the direction in which Lion moves the platform, because new OS X releases tend to be messages just as much as operating systems: Leopard, with its two-and-a-half-year development cycle, told people that OS X's fast-paced, sometimes chaotic early phase was officially over. Snow Leopard told PowerPC users to get with the times or get off the train (or, to put it positively, that Intel was the future and that developers needed to take fuller advantage of the architecture's strengths).

So what is Lion trying to tell us? Read on and find out.