August 14, 2015: AT&T joins T-Mobile and Verizon in offering new contract free plans based on monthly data caps. The carrier is offering five tiers, starting with 300MB of data for $20 per month, then escalating to 2GB for $30, 5GB for $50, 15GB for $100 (probably the best deal), and 20GB for $140.
The Hub and Spigot are two types of fitting on either end of a pipe. At one end you have the Hub (Socket) fitting; which is a female end of a fitting designed to accept pipe or a SPIGOT connector. At the other end you have the Spigot fitting; which is a male end of a fitting designed to be used inside another fittings Socket (or Hub) end.
The hub architecture divides control between a memory controller hub (MCH) that supports memory and AGP and an I/O controller hub (ICH) that supports PCI, USB, sound, IDE and LAN. The word hub in Intel Hub Architecture refers to the north and south bridges in a chipset.