DriveHQ raises another 250 million at 10 billion valuation
The massive VC funding actually indicates big trouble for Dropbox. If it is profitable, it will not need that much VC money.
Dropbox is primarily a consumer business. With Cloud storage quickly becomes a commodity market, and with Google, Apple and Microsoft offering free/cheaper cloud storage that are tightly integrated with their platform, the consumer revenue will dry out and the cost will be mounting.