i3-wm 3.e-bf3-1ubuntu1 (i386 binary) in ubuntu precise

 Key features of i3 are good support of multi-monitor setups (workspaces are
 assigned to virtual screens, i3 does the right thing when attaching new
 monitors), XRandR support, horizontal and vertical columns (think of a table)
 in tiling. Also, special focus is on writing clean, readable and well
 documented code. i3 uses XCB for asynchronous communication with X11, and has
 several measures to be very fast.
 .
 Please be aware i3 is primarily targeted at advanced users and developers.