How do you go about managing your projects from a cafe?

Put all your projects on Project Web Central and get all project managers to connect to that server.Not once but at least once everyday!
You install the hardwares and the softwares but to make it successful, you must educate the people in project management and the use of IT for communication.

Project intranets will only work if people use it. Intranet is just like a knife- just a tool. Given to unskilled, nothing happens. However, a simple knife can turn into powerful weapon if it is given to McGyver.