I know how frustsrating it is to be unable to walk very far. I've had the plantar fascitis off and on and don't even bother with the orthotic anymore. The weird thing is that I haven't had the flareups since I've been home more now and wear slide-in, open toe slippers with a good, firm sole like a shoe. Maybe it makes my feet work harder, but haven't had the problems since I started wearing these things. They're Acorn brand (not affiliated with Obama's ACORN).
How are the new running shoes doing with those special insoles? I bought a wear and need to test drive them around the house. If they don't work, will take them back.