Victoria Barret for Forbes:

What Houston does is Dropbox, the digital storage service that has surged to 50 million users, with another joining every second. Jobs presciently saw this sapling as a strategic asset for Apple. Houston cut Jobs’ pitch short: He was determined to build a big company, he said, and wasn’t selling, no matter the status of the bidder (Houston considered Jobs his hero) or the prospects of a nine-digit price (he and Ferdowsi drove to the meeting in a Zipcar Prius).Jobs went dark on the subject, resurfacing only this June, at his final keynote speech, where he unveiled iCloud… Houston’s reaction was less cocky: “Oh, shit.”