Looks like the "Community" version is limited to 1025 X 1025 resolution. For my purposes that's too little, but it might be fine with some additional work in TG. The price is right though! The "Indie" version is capped at 4096 X 4096, which is a very workable resolution and currently priced at $80. The "Professional" allows use with all available versions of World Machine (unlike Community and Indie), which is a fairly big deal imo. For WM users Geoglyph has to be a considered the upgrade that hasn't happened since Stephan Schmidt has apparently stopped new developments.