13. A mobile communications device capable of text-to-speech synthesis with personalized voice, comprising: an audio communication input for receiving over a first network communication link incidental audio speech data from a sending device operated by a remote input speaker during a voice communication between the remote input speaker and a user of the mobile communications device; a processor configured to generate, at the user's mobile communications device, a voice dataset for the remote input speaker based, at least in part, on the incidental audio speech data; at least one input for receiving over a second network communication link text data at the user's mobile communication device, wherein the text data is sent from the sending device subsequent to the voice communication; and a text-to-speech synthesizer for producing synthesized speech by converting the text data to synthesized speech to sound like the remote input speaker, at least in part, using the voice dataset.
18. The system as claimed in claim 13 , including a training module for training a concatenative synthetic voice to sound like the input speaker, wherein the training module includes a voice morphing transformation.