Two small utilities for use with old-school dual head setups: namely not
twinview / one big desktop, but rather two X screens.

mouse-switchscreen:
  Change the mouse cursor from one screen to the other. Remembers the previous
  mouse position for each screen.

mouse-wrapscreen:
  If you have an xorg.conf where both X screens are "separated" on the X
  coordinates, then the mouse cursor cannot cross. Which is sometimes desired,
  and sometimes not. Using mouse-wrapscreen you can configure them to be
  "uncrossable", and then run it in the background when you do want to be able
  to cross the cursor.

Note: Both use XWarpCursor, which was necessary with xorg 7.4. I haven't tried
it on older versions of xorg.

Both tools are based on a program by David Antliff. See the header of the
respective .c files for a brief changelog.
