You typed it up on your Windows system, well, I type this up on my x86 Debian/KDE system in Konqueror using the KHTML engine. So what? Across from me my iMac sits watching text scroll by on it, as two make jobs compile Mac-on-Linux on Gentoo. A FreeBSD system is routing my connection from both these machines to the internet.
PPC32, PPC64, x86, x64, who cares really? What Apple SHOULD mean to say is that Mac hardware is better selected, leading to only purebread systems instead of the mongrels in the PC world. And almost any BSD system can make the same claim, as BSD is 99% Standards-Only.
Anyways, I hate misinformation so:
Viruses - The macintosh design is pretty insecure. So is Linux. SELinux is pretty good, but requires "manual intervention." Non-Point. Security-by-obscurity has been debunked, multiple times.
Crashes - Well, if you have an administrator who installs unknown software, from unreputable sites, which links statically to libraries, and frequently uninstalls them, there will be trouble here no matter what. AppDirs are great Macintosh thing that self-contain those statically linked libraries. Klik, 0-install, etc. are all solutions for other operating systems. Even vmware player is a solution. Point exists, but not to the extent advertised.
Device Interoperability - If everything works according to the standards, then everything works with Windows, Linux, Macintosh, or other obscure OS. Non-Point.
Software - Who really cares what's bundled with the System? Apple tools are generally "easier" to use, but there is a wealth of free, or non-free software out there for Windows. Heck, the GNOME project is even easier than Mac OS X, IMO. iLife may be so simple a brain-dead monkey could use it, but if it weren't for Anti-Trust laws Microsoft could bundle applications with Windows to give it equally good "out-of-the-box" software. Non-Point.
Music - iTunes sucks. All hail Quod Libet and Amarok. Ok, I'm biased. Point exists. iTunes is a 100 times better than WMP. Extremely good interoperability, IFF you use other iLife products. Apple should provide a drop-in interface for selecing alternatives, similar to how the KDEPIM project did [a bloody fantastic job].
Pictures - am I the only person who hates the Mac OS pictures app? F-Spot is my tool of choice. Point exists, when compared to Windows. But even then, Anti-Trust ruling are hampering Microsoft here.
Networking - please tell me someone has tried to set up an NFS connection on a Mac. You know, the Unix one? Instead on SMB, or CIFS, the Windows one. Sure, it's possible, but it might as well not be. Non-Point.
Restarts - Ok, so the Windows Kernel can not load/unload sections at a time. It's monolithic. So is Linux. Mach is a microkernel. Wow, that just means so little. Windows only needs restarting when its kernel crashes. Here's the problem - ignorant users who assume a program locking up makes for a mandatory restart. The pinwheel-of-death is an instance of Mac's "crashing." Just because a Mac has the equivalent of xkill means nothing. End Process works in Windows. Non-Point.
So, in my opinion, in six ads, they made three points [and not just one point per ad]. The rest was just factoids or "look what we come bundled with." Pathetic. And the style was completely below what I expect from Apple, unless they were targetting business users. Which they weren't. Apple's stylish ads have always been "Hmmm, what's that?" to get your curiosity peaked, then in an article, a website, or something, an elegant description of smooth velvet. Followed up with an otherwise excellent product except it overheats and has bad capacitors. That, IMO, is good advertising. Information is not what people are interested in these days, unless they look it up themselves. Evolution of TV advertising - first it was all text, then it was emotional concepts with no product, now it's curiosity-peaking elements followed up by smooth detailed text with no intellectual requirements. Seriously, that's how ads have gone [1990+].
@ #27, that's why vendor lock-in sucks. And Apple is a worse offender than Microsoft. (I REALLY HATE Apple business practices. More than Microsoft, by far.) Unfortunately, the only solution to Vendor lock-in is something people don't like, as the geek stigmata is associated with it - Free [as in Freedom, but you all know this] Software.