There are quite a few portable, wireless keyboards on the market right now. These universal keyboards connect with Android, iOS and, Windows devices ? both tablets and phone ? over Bluetooth, and are portable enough to lug in your bag, and sometimes even in a pocket when you're out and about.
While connecting to a Bluetooth keyboard in Windows is pretty seamless, the support for Bluetooth keyboards came to Windows Phone after the Windows Phone 8.1 Update 2 only. I spent some time with the foldable portable Bluetooth keyboard by 1byone and used it with my Lumia 640XL (and Surface RT, Nexus 7, and the iPad to test cross-device and cross-platform compatibility), and here are my thoughts on the same.
Full story from the WindowsCentral blog...