I also have a new GPS! Portable - Garmin nuvi 660. Came today. I tried it out on a trip downtown but I gave it the wrong address so it had to keep "recalculating". It kept noticing what street I was on and recalculating what I needed to do to get to the original (wrong) address. It was pretty funny but it was reassuring, too.
So December is indeed a toy month for me.