If smartphones are the only thing used for computing in emerging countries.
If more of the computing functions usually done on PCs are now being done on tablets.
If ladies prefer tablets to PCs.
If tablets outsell notebooks this year - and NPD DisplaySearch say 204 million notebooks will be sold compared to 270 million tablets.
Then Steve Jobs' remark that tablets are cars and PCs are trucks will look prescient
While Ultrabooks will be seen as the last throw to resurrect PCs while paying a graceful compliment to the company which preceded them in launching consumer computers.