So the legislation went into effect July 1st and I'm still seeing drivers with handsets by their ears, oblivious to driving laws and other drivers--perhaps they're testing the grace period.
In any case, if you are considering buying something so you can be hands-free while driving and don't want to spend a fortune or attach one of those ridiculous Bluetooth things to your ear (hey, no offense, just not my personal preference), then look at this aptly named BluShell available through www.trublutechnology.com.
This thing weights practically nothing (69 grams), attaches almost anywhere in your vehicle, has an OLED display for caller id and can run on its rechargeable battery (three hours per charge). I can use it in the car, or when I'm a passenger in someone else's vehicle, or remotely as my speakerphone (a lot more powerful than my Razr) when I'm running around. It does support A2DP for Bluetooth music streaming also. For most people the best part will probably be the price and ease of use. Definitely a quick and simple solution from TruBluTechnology.