It looks like Amazon is expanding their presence into another industry this week. They've just announced the acquisition of the text to speech specialists Ivona.
Amazon was already working with the firm to improve upon the basic Android text-to-speech, voice commands and “Explore by Touch" features found in the latest versions of Android. Amazon announced some time back that they were going to use Ivona's tech in the Kindle Fire because it would offer a much more pleasing sound than the stock Android voices.
This Polish company was started in 2001 by 2 graduates of Gdansk University, and it has been working for the past decade to maintain a lead in voice technologies. The exact terms of the deal were not disclosed.