We are currently testing the Raspberry Pi 3 with our radio (serial) products.
There appear to be some issues with using the serial port, we are investigating these issues and will post if we have a solution.
Update Thursday 3rd March - it looks like this is a design 'feature' of the Pi 3. We will have to wait for this to be fixed before our serial based Pi modules will work on the Raspberry Pi 3.
Update Friday 4th March, a workaround:
adding the following lines to /boot/config.txt appears to fix this - at least it works for me.
Note also use /dev/ttyS0 NOT /dev/ttyAMA0
for some reason /dev/ttyAMA0 appears to crash minicom.
Note: the 10 May 2016 Jessie Raspbian release has changed this and it no longer works.
You now need
in config.txt. Please read this note
Update 6 June 2016
I tested over the weekend and I found that adding
to /boot/config.txt worked in that I could send and receive from my slice of radio (/dev/ttyS0) and use a bluetooth keyboard.
I have not tested to see if all the settings are needed.
I have not tested/looked at any other effect of those settings (such as reduced performance).