Status of NAT support

What is the current status of NAT support in v3? There were several proposals at the Red Bank meeting in addition to the one from Madge/Vocaltec - have any of them been accepted?

Thanks,

Melinda -- Melinda Shore Nokia IP Telephony 127 West State Street "Software longa, Ithaca, NY 14850 hardware brevis" +1 607 273 0724 (office) +1 607 275 3610 (fax) +1 607 227 4096 (mobile) melinda.shore@nokia.com