Don't know much about it, but the Amazon site has a banner at the top of the page mentioning a new device launch event on June 18th in Seattle. Says you can request an invitation here...
https://www.amazon.com/oc/launcheven...pf_rd_i=507846
A post on TechCrunch about it. Lots of speculation, but not much info, they (and others) are speculating it's the much talked about smart phone.
http://techcrunch.com/2014/06/04/ama...racking-phone/