Using a combination of HDD and flash memory in either a hybrid HDD or a dual storage notebook computer, where frequently used data (and possibly the operating system and application software) is kept in the flash memory, while the bulk of user content is kept on the HDD, has been shown to provide about 80% of the performance improvements of a pure SSD-based computer.

FORBES: A Pause Before Future HDD Growth?

Three possibilities proposed by Cox: a "peer-to-peer" social network, a cluster of "virtual individual servers" running on a cloud service such as Amazon Elastic Computer Cloud, and "hybrid decentralization, " a mix of the two approaches.

FORBES: Congress' Plan to Liberate Taxpayers From Facebook, Money

Tablets lack the functionality of a full computer and leave many holes holes that I think a hybrid device like the Microsoft Surface will be able to fill.

FORBES: Tablets Are So Last Year