I rely on Saft for two things principally: controlling where I wish to have a new tab open, and creating a special download folder each day. Now, then, this Public 4 beta version repeatedly crash instantly upon opening. I copied the gibberish (to me) in the crash notification and e-mailed to the developer. I have faith they'll get this done. Snow Leopard did put an end to input managers, and lots of developers of system tweaks are scratching their heads trying things to get their particular tweaks working through some other route. I rate Saft very high because of tradition, but his particular beta is problematical.