UPDATE: This is from the official announcement:
Amanda Congdon has decided to move to L.A. to pursue opportunities that have arisen for her in Hollywood. We wanted to meet her demands to move production out to L.A., however, we are a small company and have not been able to figure out a way to make it work, financially and in many other ways at this time. While we continue to remain with open arms, Amanda has in fact quit and left Rocketboom. So sadly, we bid Amanda adieu and wish her all the best.