Just few examples from the past:
ScanSoft, ART could settle lawsuit with acquisition
"Peabody-based ScanSoft Inc. may settle a lawsuit by acquiring defendant ART Advanced Recognition Technologies Inc., according to an Israeli newspaper report.
The deal could amount to tens of millions of dollars, according to Globes Online, which attributed the report to a Hebrew newspaper called Yediot Ahronot."
There is also the famous TellMe case.
ScanSoft files suit against Voice Signal
"Voice Signal Technologies Inc., a Woburn start-up that sells speech-recognition systems used in wireless phones, has been hit with a patent-infringement lawsuit by ScanSoft Inc., after Voice Signal refused to accept what executives yesterday called a lowball takeover bid from ScanSoft."
I think it is a great feedback to Vlingo whose management includes are ex-Nuance employees. If you are not sued in this industry, you do not exi(s)t.