Uh. In other news, no wait, in the same news (the site the article is based on, link at the bottom), Linux' market share almost _doubled_ in 9 months. How's that for growth ;)
Hey, it made things clearer. For example, when you break it down like that, you might realize that the cost vs. benefit analysis is different for different kinds of software -- there is no "critical level" in general. This is good news for Apple. As their market share grows, software crosses that threshold continuously (as opposed to all at once). That makes their platform become continuously more appealing to users too, creating a positive feedback loop.
Producing cross platform software becomes mandatory for companies that make Windows software currently (unless they don't mind their market shrinking). For Mac only software the market is growing so if they're happy enough at the moment there be even less incentive for them to develop cross platform.
well with the five or so apple laptops and desktops i have in my house alone i wonder what took them so long. but really, i would like to thank microsoft for vista ;)
disclaimer, not including two iphones and various generations of ipods :)
No. You can compile the vast majority of unix projects on linux and run them with no modifications. Darwinports is ok if you want only the top 1% of popular projects, often several versions behind.