>Say again? Open-sourcing equals abandonment?

More often than not, yes. Open-sourcing is where lots of commercial products go to die.

>It's such a shame that it and Linux have no future -- after all, they're open source, "and presumed abandoned."

Ho ho, I appreciate the sarcasm, but it's misplaced. Linux was open source all along and carrying on a gigantic community. LibreOffice too.

Projects like TextMate usually don't fare as well when open sourced. There are lots of examples.