And really, the Macbook Air isn't a FAILURE, that product was never meant to be a mainstream hit. I'm certain apple didn't say "We're going to release this and EVERYONE will buy one." They said "Look at this luxury item, and look at what it's capable of."
Apple TV never really had a clear market, but it's also far from a failure.
And the iPad is going to be a hit, no matter what the disappointed think. Fact is that it's cheap, and let's people check their facebook and twitter quite capably.
That ALONE will buy millions in the teen crowd.
Not to mention the games that will be on it/are already playable on it. So saying it's a failure on day 3 or 4 after it's ANNOUNCEMENT is bullox, and I'll go as far as to say you have failed, not Apple.