I purchased this one
http://www.buygpsnow.com/i-blue-edit...n-off-679.aspx
about 3 weeks ago
They were out of stock at the time, and it took a few weeks to get, but they did keep me notified of stock and upgraded my shipping. I only mention that because I notice they are out of stock again.
I really like it, nice long battery life, it wakes up automatically when my BT is enabled, has the same miniUSB charging accessories as the ppc6700 (I didn't own a car charger and the GPS comes with one so that was a big plus for me)
It's highly sensitive, but also my first GPS so I can't compare it to any others personally.
Good Luck!