Hi..

Yes it only zooms in to level 10.

I get levels 18,17, 16, 15, 14, 13, 12, 11, 10

Got to use it last night on a X-country flight....worked an absolute charm! Check the link below for evidence

http://www.flickr.com/photos/27570295@N06/





Especially good at night time on the way back!:



(Note: GPS in use is the bluetooth external "GlobalTop G66" - gets a fix within 25 seconds flat every single time - During this flight I never took it out of my shirt pocket)

Thanks again to the creator of MM!!!