Before I upgraded to 1.3 from 1.2, I did a reset to factory defaults via the web interface.
After loading the 1.3 firmware, the areas that I was using under 1.2 are still visible. However, the devices that went in those areas are not.
I like that the sunrise/sunset times are now displayed – I’ve never been able to get them to work, but now I see they are correct.
As with the areas being maintained from 1.2 to 1.3 (even after a reset via the web page, as noted above) the lat/lon is maintained as well.
When adding devices, it appears you can’t just give it the device address – you still need to press the link button on the device. Unlike previous versions though, it doesen’t seem to pop up that dialog that instructs you to press the button.