This deal has ended.
Buy.com has refurbished models of the TomTom One 130 Portable GPS System (model 1EE0.052.06) for just $54.99 after this $20 mail-in rebate. That's a $5 drop from earlier in the month. Featuring a 3.5" LCD display and voice-prompted navigation, it also comes with maps of the US and Canada preloaded. Shipping is free and there is no tax (except CA, MA, MD, NY, TN).