If you were thinking of milking Bitcasa's unlimited cloud storage for all it's worth, you'd better have an alternative lined up. The company is dropping its signature Infinite storage option after November 15th, in tandem with an upgrade to new infrastructure. You'll have to migrate to a limited tier (such as the new 10TB, $999 per year Pro plan) if you want to keep all your content. Why the sudden clampdown? According to Bitcasa, you probably weren't using it -- only 0.1 percent of its accounts chew through more than 10TB. Moreover, some of those that are consuming that much space are reportedly abusing it at a level which "seems impossible" for any one person. The company hasn't elaborated on what these nogoodniks are doing beyond violating the terms of service, but it's easy to see a company trying to use Bitcasa as a makeshift storage server.