Does each developer require their own Google Map Api key?

Question

I just started playing with Google map api in Android. I created my MD5 certificate thumbprint on debug.keystore as described in https://developers.google.com/maps/documentation/android/mapkey and later generated the Api key using this link: http://code.google.com /android/maps-api-signup.html

It works well as expected. But the problem is that we are a couple of different programmers who use the same code base, and it seems strange that each programmer has to create his own key and change the xml file to make it work.

Is there a way to create a more global key for google map APIs that can be shared by developers?

Using the Google API console https://code.google.com/apis/console , I also created a key for the Google Maps API and added another programmer to the project as team members, but this code does not seem to work. not even for me! What is the difference between the first API code and this code? which one should i use?

Thanks for any explanation.