FWIW, webOS on iPad: http://thenextweb.com/apple/2011/08/19/hp-tested-webos-on-an-ipad-it-ran-over-twice-as-fast/
HP's WebOS team almost certainly had an idea that the company's new tablet, the TouchPad, had very little chance of challenging Apple's dominance in the tablet market, as the company's webOS operating system was running "over twice as fast" on its rival's iPad 2 tablet, a source close to the subject revealed to The Next Web.
