You're VFR, who cares? One problem is the GPS runs on rechargeable
batteries, so no cord but you will have to recharge after every flight.

The BT-308 kit I bought came with a 12vdc charger, as well as an external
antenna. So I guess you got wires again, all of a sudden. But at least
you won't have to have anything going from the PDA to the GPS.