Mac Server is now ready for mainstream. Grab it from the "DOWNLOADS" section on the left.
It has all the functionality of the Windows and Linux servers. It has a easy to use DMG installer and "auto start on login". To prevent auto start or change the port number click the blue/black Mega Mouse icon in the top menu bar and select configure.
Currently the only known bug is that the Windows/Apple key does not toggle on the iPhone app. (It is the Wnd key for now.)
A new release of the iPhone client with the correct key symbols and some more features will be released shortly.
Please let us know if there is anything else wrong, or if you find a feature you would like.
-The Dev Team.