"NO NMEA over USB !"2.0 starson by Polarlys
Pros: Good reception
Cons: No USB NMEA Output - only legacy serial COM
Summary: As of this writing (10/10/2007), Garmin tech support informed me that this unit does not support NMEA output over a USB port (only over a legacy serial port using a separate cable that is not supplied with the unit and that requires a legacy serial port on your computer -- most newer machines only have USB and the Garmin unit only comes with USB drivers and a USB cable. It WILL NOT output NMEA data (eg position info for a computer navigation program) over that USB interface. I asked if they planned on issuing a virtual COM port driver for the USB port for their unit and they said "We are looking into but do not offer that at this time."Updated
I originally stated that there is no NMEA over USB. Actually there is -- it requires Garmin's free Spanner software to create a virtual COM port. Garmin phone support was unhelpful (and wrong), telling me you could not do it. About a week later I got an email from their email support guys that told me how to do it and where to download the necessary software. The unit is quite excellent.