Well, Apple's whole walled garden approach to convenience computing (which may start to extend to their Macintosh range as well) could prove to be the only thin

Well, Apple's whole walled garden approach to convenience computing (which may start to extend to their Macintosh range as well) could prove to be the only thing standing between safety/prosperity and oblivion (hacking, piracy, malware...). That could put Apple in pole position, but if things pan out differently they are free to pursue another strategy and still have a chance to grow.