I'm looking for a Windows incarnation of AntLogic's To-Do Lists (which is for MacOS only), an extremely simple To-Do app with one (to me) killer feature: You can have multiple To-Do lists on one screen, and move them around and resize them as you please (like in your typical post-it app).
This is what it looks like:
Other than the "all tasks on one screen feature" which is a must, the app is standard To-Do app fare (cross out finished tasks, reminders, important tasks in red, not that much more)
Mobile sync (either with a companion app or Google tasks/whatever) would be a huge plus
XML export, automatic backup, etc. etc. are welcome additions (there should be some way to export tasks into a standard format)
Budget: the MacOS app cost $5, but I'm open to suggestions in any price range.