Can someone who has tried Teambox and Open Atrium (http://openatrium.com/) give their opinions on both?

We have this running in our organisation on our own server and it works great!

We had some issues with SMTP configuration, but for the rest the installation was very easy, thanks to Phusion Passenger.

Are the features of the premium plan (search across all projects & time-tracking) part of the installation?

Heroku makes it really easy because you just enable the free sendgrid add-on and it automatically works without any configuration whatsoever.

Is anyone able to outline the main differences between Basecamp and Teambox? I have just started using Basecamp - I like it, but I feel that is not exactly what I want for running my projects...a bit too "stiff".

I would say Teambox is a twitter-like approach to project management. You can either refer your message to a specific conversation/task or just make a status update like "Working on xy". I have used Basecamp for years, and the main difference is, that Teambox is (in my opinion) better to stay on top of conversations. I've often found myself losing track of conversations in Basecamp because of new threads being opened and older threads moving to another page.

I have to agree with you. Although BC's new "most active discussions" at the top of Messages does help.

2:54 "... even though he is sick at home he is working on this new task ..."

I thought I'd post this because I found it to be a great project management tool for my projects, and with its free plan, it's a good choice for startups that can't afford an expensive alternative. Plus, it's open source, which is always a good thing if you want to tweak it.

Been using this for a couple projects lately. Despite a couple quirks (mostly features I'm used to in Basecamp) it's been really solid. Now if I could just get the rest of my team to start using it :)

I think this is the beginning of the new generation of project management tools that focus on communication instead of planning and reporting.

This is exactly what I needed! Open Source for the win.

And, it supports markdown, ++

Was I the only one that was getting anxious by seeing the words "Gantt Chart" in the screencast?

You should not be anxious about chart, maybe try Paxil, Xanax. lol

No, seriously, what's wrong with Gantt chart?

Extremely beautiful UI. Great work!

Indeed... wonder why they went for jaggy rotated screenshots on the homepage though.

I like it! Really very useful when you working with a geographically separated team.

I used TeamBox a short while a few months ago, but switched to Pivotal Tracker, and haven't looked back. My opinion is that PT is excellent for development teams (or even solo developers).

The only thing that I would miss from Pivotal is velocity-tracking.

Pretty awesome that it's opensource.

Am I the only one who sees 37signals all over this product?

Yes.