Forbes magazine has published a splendid article about the history of Dropbox that is one of the most successful startups in the world of IT-industry in recent years.
Drew Houston has gotten the startup idea on the bus from Boston to New York. The journey was four hours, Drew took a laptop, but he forgot the flash drive, so he did not have any files to work in his notebook. Drew started to write a code to synchronize files over the Internet on the bus. Four months later, he flew to San Francisco to present his technology in the startups incubator of Paul Graham (Y Combinator), but he refused to accept the project until Houston finds a co-founder. Only after that they gave 15 thousand dollars for development of the project. This money was enough just to rent an apartment and to buy a mackintosh.
One of the bright moments in the history of Dropbox is a meeting with Steve Jobs in December 2009, when Apple's CEO tried to persuade the young startup founders to sell the project. Steve Jobs said that Apple will come on this market soon, and Dropbox is a feature, not a product.