Has anyone seen the godot web editor? It says it's got limitations not found in the download. I think this could be a great move for Godot, if they could make it complete. People would be able to use that with their phones.

Seen it, sure. It's at https://editor.godotengine.org/

I haven't done more than look and say "Yup, that's Godot all right!" myself and I don't know if it's got any integration with online/cloud storage vs. working with local files, so I can't comment on the collaboration possibilities.

and I don't know if it's got any integration with online/cloud storage vs. working with local files, so I can't comment on the collaboration possibilities.

It had Dropbox integration at an earlier point, but it didn't work well and was scrapped. Therefore, there are no collaboration possibilities currently (other than dowloading the project as a ZIP archive and sharing it with others). The web editor is mainly meant to be used for experimentation and education.