Basecamp is an excellent online project management tool for anyone with a browser:
Basecamp takes a fresh, novel approach to project collaboration. Projects don’t fail from a lack of charts, graphs, stats, or reports, they fail from a lack of clear communication. Basecamp solves this problem by providing tools tailored to improve the communication between people working together on a project.
It’s simple, effective and fast. It’s not Microsoft Project, and that’s an advantage: Basecamp is a tool, not a master.
But the point is that Outpost now makes Basecamp available on the iPhone.