By default the most out of the box Open Atrium provides is username token for email messages. Not sufficient if you plan to use OA in a professional environment. Also username is shown in listings instead of user's full name while it really ought to be users full name.
Increase memory limit (Rackspace provides 32 MB by default). I use the following at the top of my .htaccess files: # # Overridden PHP settings: # php_value memory_limit 128M php_value max_execution_time 60
One of the things I am really going to miss after 3.5 years at One Economy is the folks in the web team. People who think like you do, consume as much sugar/caffeine and manage to have a full life while sometimes working into weekends - rare kind of folk.