I wanted to see if there was good speech recognition and could Google about Nuance... Now that its going to be "disrupted" I found out about it.. ironic.
Try Googling "speech recognition api"...
IBM's offering is using the nuance engine, with Watson using its magic to make more accurate predictions based on context.
IBM split from Nuance a year or so ago- it's now its own engine.
Not sure how many users of IBM speech API but Nuance is big in this area (also offers offline conversion products)
Well NUAN took a 5% price hit after the announcement today, so maybe there's some overlap?