I used to have a Palm years ago. And it seems technology is focused on phones replacing PDA style devices. However, I do not want a data plan.

Does anyone have any suggestions for easy to use, Windows mobile/ce based PDA that has good calendaring / reminder capabilities? (Im looking for a windows based device because I have an app that is written for it that I would like to keep on this mobile device.)

If it had wifi, that would be a bonus as well. However, this is not a requirement.

If all you can think of is older technology, I am open to ebay to look for these items.