In 1999 IBM released a free version of ViaVoice (http://en.wikipedia.org/wiki/IBM_ViaVoice). IBM sold ViaVoice in 2003 and all distribution functions passed to ScanSoft, now called Nuance (http://www-01.ibm.com/software/pervasive/viavoice.html). Does IBM still own the whole stack, or is it based on Nuance code?
Are there plans to open up parts of the older voice technology and contribute it e.g. to CMU Sphinx?