On line access seems to work ok, but it was the off-line that I was really interested in and it is somewhat limited. Only maps you browse to at the zoom you browsed in are available when you are off line, and there is no mention of the amount of cache space required or being used and when it is reclaimed. What would be nicer would be to able to specify an area that you want to cache the maps for and the scale range you want cached. It could also tell you how much memory is being used and allow you to clear the cache.