FWIW, I use a 10.99 iPod holder I got at Best Buy that snaps into my dashboard vent. Held my 6700 perfectly, although it's slightly wide for my TP. It comes with little "wings" to make an iPod Nano fit, though, so I think the TP will fit well with those. (If I still have them...)
http://www.bestbuy.com/site/olspage....=1172880153564