OK for some uses - however the Update Altitude tab is of questionable use - probably OK in flat terrain - in hilly terrain altitude at the given x,y can be off by 10+ meters elevation compared to Google Earth! - Update Altitude tab must use a very coarse x, y grid to estimate the altitude - the correct altitude can be found over 50 meters away in the x,y direction
Being able to export to ESRI shape files would be awesome. I don't use ArcGIS, but the shape file format is a de-facto standard file format for a lot of spatial applications (GIS). Right now I have to work from the CSV file, which is possible, just more cumbersome.