For those who like the behind-the-scenes stuff, here are 10 early sketches of UI elements/concepts for the new Basecamp.
Early concept for the project blank slate (empty project, no content yet).
Companies and people, take 1 (discarded).
Companies, people, and groups, take 2 (discarded).
Loop-in UI for messages and comments.
Adding/editing a project name.
Create a new project.
No projects yet.
Tabs for people and projects (discarded).
Blank slate for a sheet in a project with no content yet.
Live text document collaboration with presence (not in v1, maybe later).