Funny how there have been so many "iPhone killers" in the future tense, but none in the present tense. Is it Windows Phone 7? The Samsung Galaxy S II? HTC Tunderbolt? HTC Evo 4G? Palm Pre? Blackberry Torch? Nokia N9? Samsung Wave? HTC Droid Incredible? (All of those links are to stories with "iPhone killer" in the headline.)
On the tablet side, we've had the Motorola Xoom, Galaxy Tab, Kindle Fire, HP Touchpad, Blackberry Playbook, Sony Tablet S, and Asus Eee Pad Transformer. So you can understand why "iPad Killer!!1!!1!" predictions are met with a fair amount of skepticism.
HP had the ultimate suicide run with their own tablet OS effort.
None of those suits know what the heck their market is or wants.