I have fried my GPS receiver by plugging in the wrong charger 
Ideally I'd like one that charges off USB (to avoid more stupid charger mistakes) and I am also a bit intrigued by the receivers with solar panels that help trickle charge the unit to increase operating time - they seem like a good idea.
So spec me up a GPS receiver or suggest me a unit:
Prefereably USB charging (maybe with a solar panel).
Bluetooth is a must.
How many channels should I look for 12? 16? 20+ ?
What is considered a reasonable cold start time to satellite lock on? 30 secs?
Please move this to GD if this is the wrong forum.

Ideally I'd like one that charges off USB (to avoid more stupid charger mistakes) and I am also a bit intrigued by the receivers with solar panels that help trickle charge the unit to increase operating time - they seem like a good idea.
So spec me up a GPS receiver or suggest me a unit:
Prefereably USB charging (maybe with a solar panel).
Bluetooth is a must.
How many channels should I look for 12? 16? 20+ ?
What is considered a reasonable cold start time to satellite lock on? 30 secs?
Please move this to GD if this is the wrong forum.