HP unveiled a pair of TouchSmart PCs that should be the first computers to address Apple's complaints about fatiguing desktop touch. The TouchSmart 610 and its business-focused 9300 sibling have a reclining screen that slides down as far as 60 degrees. Making the switch gives the all-in-ones a natural, tablet-like interface for using touch apps for hours without tiring one's arm and still having the option of an upright display.
