guest access to samba shares on 10.8 Is there any way to allow public (ie no user/password prompt) access to samba shares using the mountain lion built in server? 

Even with Everyone set to read/write in System Preferences and the guest account enabled for sharing a password is always required when trying to connect from a windows computer (I've tried both 7 and xp).
Yep!


Go to 'Users &amp; Groups' in System Preferences
Select the 'Guest User'
Tick 'Allow guests to connect to shared folders'


Done :)