Those always-up-to-something folks at OkGreat have launched a fun new feature called “Hello Operator” that allows you to call and leave a voice mail that will then be posted in the sidebar media player. To go along with this launch, they are giving away a ton of design-goodness, (Richard Perez poster? Yes,please!) which you can win by leaving a voice mail and blog comment. So hop to it, and tell ’em Labor&Curse sent ya!