gtodo 0.16.0~rc2-1.2 (i386 binary) in ubuntu raring

 GToDo is, as its name suggests, a "to do" list manager for GNOME.
 Although it's simple and very small, it's also easy to use and
 fully-featured, being able to divide your entries into as many
 categories as you wish (among the default ones: Personal, Business
 and Unfilled), and allowing you to sort descending on ascendingly,
 according to their priority, due date and status, not necessarily
 in this order.
 .
 You can also choose if you want to highlight or even hide items,
 taking, for example, the time until due date into account.