John, well, just went around the globe, (on google
lot of the hot islands etc. Most places have plenty of resolution. a big external HD storage drive could store this stuff. I don't know, but I suspect this system will only improve. There are no doubt ways to add in additional overheads of the major ports etc. With google earth pro you can plug in magellan and garmin gps units soooooo...I don't know. My comp has a 17 " monitor, and I'm thinking I'll incorporate this stuff into the boat before I head out. Lots of fun to play with and there's nothing quite like the bird's eye view of inlets, etc. Even a place as remote as Lord Howe Island has sufficient detail to see people on the deck of their boats at anchor
In any event, I think that the future sees all this stuff coming together inside a pc.
seer