Why didn't I rate 5 stars? It take 4 hours to load the card over a serial link. The USB programmer is a bit pricy but would really make life much easier. I think for my needs I can get by without it. If you need program the card often you will want it for sure.
I am having issues with my card though. Depending on where I am in the map set the unit will hang and sometimes shut off while navigating a route. I might just have a defective card. I will find out how Amazon handles these issues soon.
Oh yes downloading nearly 64MB takes nearly four hours. The USB interface is looking very attractive (even if it is expensive).