writes in with a story about how hard it is to be a successful PC company in today's world. "Hewlett-Packard Co. used to be known as a place where innovative thinkers flocked to work on great ideas that opened new frontiers in technology. These days, HP is looking behind the times. Coming off a five-year stretch of miscalculations, HP is in such desperate need of a reboot that many investors have written off its chances of a comeback. Consider this: Since Apple Inc. shifted the direction of computing with the release of the iPhone in June 2007, HP's market value has plunged by 60 percent to $35 billion. During that time, HP has spent more than $40 billion on dozens of acquisitions that have largely turned out to be duds so far. HP might have been unchallenged for the ignominious title as technology's most troubled company if not for one its biggest rivals, Dell Inc. Like HP, Dell missed the trends that have turned selling PCs into one of technology's least profitable and slowest growing niches. As a result, Dell's market value has also plummeted by 60 percent, to about $20 billion, since the iPhone's release."