Deletion of IVONA

Comment: to Amazon Echo#Overview of operation, where the company and TTS are mentioned. Considering this is one of the better TTS systems out there, I was surprised to find little in the way of independent reviews or history. Ivona appears in lists of best TTS systems, such as https://elearningindustry.com/top-10-text-to-speech-tts-software-elearning (looks reliable) and http://www.geoffsimons.com/2012/06/7-best-android-text-to-speech-engines.html (seems well researched, but it is a blog). There is basic verifiability, but these fall short of  notability thresholds. Its biggest claim to fame is as one of the foundation speech technologies in the Amazon Kindle and Echo devices. Per  and , we should preserve verifiable material instead of deleting it. Until more independent sourcing becomes available, a redirect to it most notable use seems the best way to give readers a little information about the TTS without outrunning the sources
Stance: merge
Cited policy: Wikipedia:Notability (WP:GNG||WP:PRESERVE||WP:ATD)

Comment: to Amazon Echo#Overview of operation I don't see enough sources to show that it is independently notable. The only sources talk about Amazon acquiring it, so I guess a redirect works fine. I don't think a merge is appropriate per 
Stance: merge
Cited policy: Wikipedia:Neutral point of view (WP:UNDUE)