My old Thinkpad T61 had a fingerprint reader, which worked maybe half the time. So (naturally) I stopped even trying to use it after a week. Apple's implementation may be better, but if it's no better than Siri, well, nothing to see here...
Aren't we all entitled to a little privacy?
And how will it make the sort of money needed to pay the investors?
Selling sock puppets, maybe?
OK, let's do some very, very rough calculations here: assume that there are six billion people on the planet and that a third of them own a computer with Internet access. That's two billion. Assume that Mac users are 10% of that group. that's 200 million. In order to account for 10 billion apps, the mean downloads/person would be 50. Really? Since the vast majority of Mac users already had the apps they needed before the store opened, I find this very hard to believe.
Never mind...I forgot that the app store is for iPhones, iPods, and and iWhatevers. Save your flames for more important things.