The Nokia 5230 Nuron and Motorola CLIQ XT today has just available on T-Mobile along with HTC HD2. Nokia 5230 Nuron is a Symbian handset which is probably the cheapest SatNav available right now. Nokia Nuron is preinstalled with Nokia Maps and also include a free voice guided navigation license. You can also download the map you like and not using the default map. The Nokia 5230 Nuron price is set on 69 dollars.
The Motorola CLIQ XT which also called Motorola QUENCH outside the US is a mid-range Android handset. It is features 5MP camera and MOTOBLUR UI, which is similar to Motorola BACKFLIP. The Motorola CLIQ XT price is set at 129 bucks.