TomTom has released two new large-screen GPS units. Dubbed XXL, the XXL 540S and 530S both offer a large, 5-inch screen, IQ Routes, and text-to-speech. The 540S adds Advanced Lane Guidance and IQ Routes.

Neither unit is available for purchase yet, but Amazon is taking already taking pre-orders for both the XXL 530S ($279) and the XXL 540S ($299). Units are expected to start shipping November 15th 2009. $20 seems like a small price to pay for the addition of lane guidance and IQ Routes, so the 540S looks like a better buy while pricing remains this close between the two models.