Sitting in a Starbuckies and writing this with my Kindle FireHd and my Amazon Bluetooth keyboard. Also doing some support on WordPress.org.
Everything works in general. Copy and paste is a little sloppy as the same highlighting function is used to choose bold or italics, etc. The best combination seems to be the keyboard and using the touch screen . Puffin does come with a mouse switch which puts a trackpad on the screen. I need to try a Bluetooth mouse when I get home.