Yes, it's a bit low res for use in maptool as an encounter map - but actually not as bad as all that.

Here's a quick screenshot using this in maptool Any closer in and it gets a bit pixelated, but at this distance it works pretty well and would llow for some nice large scale battles. If a specific area was of interest for a battle, that area could be done in high res and imported in to patch that area - a bit like in Google Maps.

Click image for larger version. 

Name:	TorqTest.png 
Views:	96 
Size:	263.4 KB 
ID:	4614