Safari 4 Beta is out for Mac and Windows operating systems. The new Safari 4 comes with some handy functions like Top Sites, Cover Flow, Full History Search, Tabs on Top, Nitro Engine, Windows Native Look and Feel, Developer Tools.
Safari 4 seems to be very big jump from the Safari 3, espacially for the Windows users. Native Windows Look and Feel and minimalistic user interface similar to Google Chrome is very interesting.
