I would like to see a manual way to cleanup and redo port mappings via upnp. I loose power regularly in my place (inverter issues) and the router obviously looses the port forwarding mappings..... This could also be of use to people in coffee lounges universities, cable connections, wherever the ip address changes frequently.
Ultimately this could be automated whenever tran' looses all of it's peers suddenly or some such mechanism. Like some rudimentary logic to figure out what has happened and take reasonable steps to repair things.
Many thanks for a wonderful client.