I am having a hard time finding Windows software (as opposed to a web-based application like Astrid or Toodledo) that can sync with my Google Task lists. I don't need anything very powerful, just something that can display all my Task Lists at once and allow me to move action items between lists. Syncing with Google Tasks is the key.
Right now I am just using the desktop app feature of Google tasks and have created an open window on my desktop for each list. But this is a bit clumsy.