I don't care if it's Linux or something else, it is badly in the need.
The LiPS standard, version 1, is available.
The Register run a story:
The documents published today include APIs for interaction with the address book, text input system, user interface, and the all-important voice-call enabler. LiPS promises full telephony control, messaging, calendar, IM and presence as well as more UI-interface elements by the end of 2007. Unless the organisation has improved its forecasting, expect some slippage.