Workaround for Unidentified Developer Warning in WeaveMaker for Mac Lion
In OSX Lion, Mac has defaulted their system to only run applications from "approved" developers. WeaveMaker has recently been approved and is working on updating their software to eliminate the warning. Until then, there is a workaround.
Mac has decided, by default, to only allow approved applications to run on its systems with the intent of better security. To change your settings to allow all applications, open System Preferences and choose Security and Privacy. Click on the lock to make changes and enter your user's credentials and unlock. In the General tab, select Allow applications downloaded from Anywhere. Now you will still see the warning when you try to open the application, but it will give you the option to Open anyway.
Original Instructions with screen captures and more details, credit to thegothicparty.com