The Alexa-Cortana crossover is now available to the public

More people will be able to access the Alexa-Cortana collaboration their companies unveiled last year, now that the team-up is available as a public preview. Unfortunately, you can only take it for a spin if you're in the US, but this is still a much wider release than the limited beta Microsoft and Amazon rolled out a few months ago. So long as you're a customer based in the country, you'll now be able to summon Alexa through Windows 10 devices and Harman Kardon's Invoke speakers and Cortana through Amazon's Echo devices. The two tech giants are working together to bring the experience to more devices. If you want to access Cortana on an Echo speaker, just say "Alexa, open Cortana" to use the assistant to check your emails, schedule and to-do lists.