"It's like we said on the iPad, if you see a stylus, they blew it."
-S. Jobs, of sacred memory.
Now, this wouldn't be the first time that Apple has consistently rubbished a competitor's idea until they decided that it was time, and then reversed so fast that you'd think inertia didn't apply to them(Amazon releases Kindle. "Nobody reads". A short time later, Apple is unveiling iBooks and getting antitrust-lawsuited for bending the entire publishing industry to their whim...); but Apple has shown surprising distaste for styli, which is odd in light of the massive 3rd-party sales of not-terribly-good capacitive ones for iDevices, as well as their major sales to Wacom-wielding creative types.
By strange contrast, Microsoft, of drab office-drone and shooter-game fame, has been (almost entirely futilely) pushing "pen computing" like it's Bill's baby since Win3.1, all the way through to the present.
Were I a naive observer, I would have assumed that Microsoft would be staunchly insisting that Mice and Keyboards are what the gods intended, while Apple would have absorbed Wacom. Far from it, however.