Looks like 14.10 installed during the night - I did my usual restart of the watch and noticed the above message and an OK during the boot up. Not seen that before. Only have the standard maps on the watch. Anyone else see that?
I took a look at the storage and some weird a$$ map files 'D7786000A' were installed. Never seen that before. The maps updated too recently - given my watches crappy ability to hold a data connection I'm expecting it was some failed transfer. Removing them and restarting removes the message.