- Make frames view-specific, do not destroy them during send_to_area's within a view (allows faster checks for client_of_view etc).
- Add collapsing to each Frame, add revert Xrectangle, remove column modes, add max flag to each Frame (maximizes to area until next navigation action within this area)
- Editable tag bars
- Grab boxes
- Enable border based resizals (think about removal of /def/grabmode then)
- New events file system interface
- "Sticky" floating windows (scratchpad layer)
- Do better relaxation (remove /def/border and calculate borders dynamically)
- Resizable managed area
- Proper managed mode resizing and movement  (ie., col based based rather than arbitrary)
- Xinerama support(?)
- Screen dimension rescaling if screen resolution changes (even with Xrandr)
- Partial EWMH support
- Workaround for apps that miss resize events
- wmiisystray
- Plumbing for tag bar
- UTF-8 support