There are some posts on here requesting that the Free wire come with a USB power adapter instead of a cigarette lighter adapter. I would like to add my vote to that request but to also state that it would make much more sense to have a USB-Pin power adapter than a USB-USB one. The Freewire I just bought came with Cigarette-USB which is pretty useless as I cannot charge the device while riding. Much more useful would be Cigarette-PIN or (preferably) USB-Pin. These latter two options would allow for charging while riding and using the auto-on/off feature.
Freewire Power Adapter