BlackBerry Priv

HTC's long-awaited Vive VR headset is now available for pre-order and the Samsung Galaxy S7 is now shipping to pre-order customers. Amazon expanded their Alexa virtual assistant to the portable Amazon Tap Bluetooth speaker and the compact Echo Dot (which you can amusingly only order through an Echo voice command). And BlackBerry's Android-powered Priv finally launched on Verizon.

Apple's ongoing legal back-and-forth with the FBI got a little more interesting, pitting Silicon Valley against the FBI's demand for backdoor access. Thirty companies have filed briefs in support of Apple's position, including big-deal companies like Google, Microsoft, Amazon, and Facebook.

Microsoft's HoloLens AR headset also went on sale, with the first shipments due to start at the end of March. And our #Windows10DoesMore Gem apps campaign continued with Ring, BB-8, and Two Dots.

All this and much much more, this week on Mobile Nations!