When it is finished in the second half of this year, the specification is expected to deliver data rates of 10Mbps for home phoneline networking and also to be backward-compatible and interoperate with existing HomePNA 1Mbps technology.
An API is a specification of the dialect that computer programs or their components use to exchange data with each other or with the hardware they are running on.
The USB Forum announced that a new specification for USB 3.0 to be announced in June would allow up to 10 Gbps native data rate (twice the current 5 Gbps data rate).