Oh cool, yes it looks like we are trying to solve the same issue :-). One difference I can spot right away is that Geekbot will post the status update immediate

Oh cool, yes it looks like we are trying to solve the same issue :-). One difference I can spot right away is that Geekbot will post the status update immediately, while Jack will collect everyone's responses and post them at one time. It's hard to say which one is more effective. I'm definitely bookmarking this service, thanks for sharing :-)