Apple have proved that you need the right GUI for the right platform—this is why Microsoft never managed to succeed in creating a good, consumer Tablet device.
WebOS is a much better fit for these touch-based devices. A traditional WIMP GUI will better fit the notebook and netbook markets.
I rather like Apple's stuff myself, but I'd be a lot happier if they had genuine competition, and HP are big enough, and focused enough, to provide it.
(And no, before you Google fanbots pipe up: Google aren't competing with Apple. They're competing with CNN, NBC and other "old media" companies. *Google sells ads*. That's what they do. That's all they've *ever* done. All their software is designed to sell ads. Android is just another tool to help them achieve that goal. Look closely at the new Google TV technology if you don't believe me.)