Windows Live Write Clone for the Mac(repost)

This is a fairly straight forward assignment. I am a big fan of Microsoft's Windows Live Writer, the blogging tool. I am now on a MacBook and would like to have this piece of software running without having to run windows on the Mac. I would like a clone built that is look and feel compatible with the PC version. It does NOT have to have file compatibility. I should have the basic look and feel and run basically the same as Windows Live Writer. It will need to successfully post blog entries to Typepad ([login to view URL]). The source code will be released to the Mac Community for improvements. It must run on Leopard, Mac OSX