Anybody know of a laptop+OS combo that can give me the same fluid navigation of windows/workspaces as OS X? That has always been the best feature for me: snapp

Anybody know of a laptop+OS combo that can give me the same fluid navigation of windows/workspaces as OS X? That has always been the best feature for me: snappy, fast, fluid window/workspace navigation with the 3-finger swipe. Great for going back and forth between docs and the IDE (split-screen makes texts too small for my 13").