Windows Phone Thoughts: I'm Looking for a GPS Gadget...

I'm looking for a particular type of GPS gadget, and I'd like some input from Pocket PC Thoughts readers. I saw one of our banner ads here for Radio Shack advertising a gadget from Bushnell called the BackTrack (see? advertising can be helpful!). I did a bit of reading on it, and it seems to be the exact type of thing I'm looking for. When I was on vacation in Japan in early 2008, there was more than one occasion when I had trouble finding my way back to our back-alley rental condo at night. The funny thing is that I brought a TomTom GPS with me, assuming (yeah, exactly) that even without maps it would still do basic point A to point B guidance - and it did not. Talk about technology failing me! So I've on the hunt for a cheap, simple GPS device that will allow me to mark a geographical point then be able to find my way back there again. This Bushnell Backtrack looks like it will do the trick, and it's not too expensive at $79.95 CAD from an online store. Any other devices I should be considering?