I just found out about Stanaphone, a NY company which is offering FREE VoIP service (during their beta stage, at least).
Sign up with an email address and you’ll get a free NY incoming DID and 100 minutes of free outgoing national PSTN calls per month.
It took me five minutes to get a New York phone number and have it working with Asterisk. Too cool.
I’m still looking around for a company that offers the same service with local 919 numbers.