I just saw the Sandisk ad on the Tube (Londoner here) and recognised it immediately for what it was: an inspired piece of guerilla marketing.
As an iPod owner myself, I wasn't remotely offended. I love my iPod, but it does have its limitations, and if the odd scathing, funny sideswipe make the White Monolith improve its products or services, bring it on. My experience of it to date has been mixed, but there are overtones of 'we're so big we just don't care'...
Eversoslightly off topic but one example would be when I tried to buy an iPod as a surprise birthday present for my (Canadian) partner. I called Apple Canada, which turned out to be Apple US. They couldn't process my order because they wouldn't let me pay for it using a UK Visa card. If I'd gone to a darned Applestore in Toronto I could have bought one, but on the global highway? No go. I had to call a friend in Toronto, who bought it on the ground and wrapped it up, but it kind of took all the fun out of it.
So I say, More Sandisk Torpedoes! Long-live the Fifth Column! :)
When Is It Okay to Insult iPod Users?