Hi
After a little digging about I have found that it is the same unit that is fitted in the earlier Defender and the 07 on Defender.
But what I can't find out is if it is connected to the OBD port in the same way. The engine ECU and Instrument cluster on the 07 Defender uses a high speed can bus connection.
So in theory the Nanocom should be able to program the unit but it depends on wether the interface between the OBD port and the alarm unit has remained the same.
Here's a link which gives details of all the Land Rover ECU's, what they do and what they can be made to do.
http://www.blackbox-solutions.com/shop/help/Cheers
Graeme