I recently got the Bluetooth adapter for my Typepad cover, but had no idea how cool it was until now. I'm using it to type on my iPod Touch. Sadly it doesn't work with my Windows Phone.
It also works with my Amazon Fire and my original Google Nexus. Weird that it works with everything but my phone.
I am using the older model, but here is the current keyboard:
Unfortunately the adaptor is currently out of stock: