Called yesterday to renew my $12.50 plan (as per this thread
) and was told they could only offer it for 6 months (I got the impression they want to discontinue it), but they had a better deal for me: $9.99/month, unlimited US and Canada, ongoing, without contract. I did not ask, but I think this plan does not offer free international like Vonage World does or even free landline calling to those countries in Europe like the old Vonage plan did. Nevertheless, I took the offer since I am doing very little international calling.
So, if you are an existing customer, my advice is: call Vonage at 1-866-243-4357, and say you want to cancel because you heard about some other Voip service that is cheaper. And see what they can do fo you.