Apple's iPad 3
launch later this week has dragged the "PC killer" speculation back out into the open, with the third-gen iOS tablet expected to further trounce traditional computing as shoppers vote for fingers not mice. It arrives to an increasingly crowded market, however, with not only Android tablets mustering for a second wave, but Windows 8
waiting in the wings. Both platforms will bring potent hardware to take on the iPad, too. As PC manufacturers - especially those of Windows-based tablets - have discovered, though, there's more to challenging the iPad than throwing specs at it.