I'm looking for a good project management tool for 2 developers. I prefer online services such as basecamp but others are welcome as well.
Some tools are heavily designed for large teams so looking for project managements tools which is suitable for really small teams like 2 to 4 developer.
It can Open Source or Commercial.
With two developers you could possibly get away with a Microsoft Project or Open Workbench project file in version control (I've used this before with a two person team).
If you're using Agile methodologies, XPlanner is a nice, web-based, open-source project management tool. It's simple and lightweight, but what it does, it does well.
We use Redmine and we just love it.
It's very intuitive, fully configurable and clean.
It's not hosted solution, it's build on Ruby on Rails, so some knowledge of Rails could help you install it on your server.
We've also tried GoPlan, which is a simple online project management tool with a free plan (up to two projects). It's simple and intuitive as well.
Lighthouse - simple & clean, hosted, free for 2 people and 1 project.
I really like Target Process...they have a free version available.
@MattK
I support you. XPlanner is the best. XPlanner-Plus is the continuation of XPlanner. New features are under intensive development. Demo is available. And XPlanner+ has activity :)
In our small shop we are currently using Software Planner. You can view traceability and manage all aspects of our development. It is fairly inexpensive as well.
We are using VisionProject. This tool is working fine for both quite large teams and for small teams.