New cellphone launching in July 2009 called Buzzirk Mobile. This looks awesome! For $79.95 you can call unlimited to any number in US and Canada, and this is true unlimited usage which includes data, texting and downloads. For another $10 bucks a month it includes calling to over 40 countries including Mexico, Australia, China, etc.
You can check it out at: http://www.buzzirkmobilezer01.com