Comment on this news article
How to easily switch between startup volumes - Macworld
http://news.google.com/news/url?sa=t&fd=R&ct2=us&usg=AFQjCNGJWfZcpjO-Z0fSjxaK94v6kiYrsg&clid=c3a7d30bb8a4878e06b80cf16b898331&ei=97e0VPCKDObswQHr_4CoDA&url=http://www.macworld.com/article/2867276/how-to-easily-switch-between-startup-volumes.html