[Rickster]

I reviewed the Tom Tom before I got the Zumo, and except for the antenna, they prety much have the same features. Two differences are, the Garmin Zumo has a lot more RAM, ( not a big deal, because they both take SD cards), and the Zumo has a built in MP3 player that you can ues even well navagating, the Tom Tom doesn't have a MP3 player. The Magellan 2500t is also very similar, and it has the good antenna, but you can't use the MP3 player and navagate at the same time.

The Garmin has something called the SiRFstar111 high sensitivity antenna, and I'm here to tell you this thing is great, I can get a full signal inside a brick bulding that doesn't have any windows, so even when you are setting in a restarunt having lunch, you can still have it turned on, and plan any changes in yout route.

I hear the Tom Tom will lose it's signal sometimes if there are tall buldings around. I have driven through short tunnels with the zumo, and not lost the signal.

This is my second GPS, and signal strength was my biggest gripe about the first one, it would lose it's signal just from heavy tree cover, so a good antenna was high on my list of what the new one needed.