Jolicloud is a stripped down operating system that, instead of running software, connects to Web services using their application programming interface (API).

FORBES: The Disposable Operating System

Earlier this week the streaming hi-fi hardware maker Sonos announced that it was opening up its API (Application Programming Interface) so that music services could build apps - and those already include Spotify.

BBC: Spotify goes apptastic

According to TechCrunch, buying TokBox added new services that Telefonica could offer developers through its BlueVia Application Programming Interface (API) platform: these already included voice, messaging and billing APIs when the TokBox deal closed.

FORBES: If You Can't IPO, Telefonica Might Help