Well, my 4 year old cell phone, which I got in part because it reminded me of a ST:TOS clamshell communicator, has finally bit it.
If I have the thing sitting in it's cradle, it will work but it appears that the battery has just decided to shake this mortal coil.
I'm going to go pick up a new phone tonight at my local Sprint store.
Good luck in the afterlife my old friend!