I bought a the hipi 2300 made by Paragon Wireless off of Ebay for $425. This phone accepts my T-mobile SIM card and I signed up for a VOIP plan for 10 dollars a month that allows unlimited calling w/in my state. I have two phone #'s now. One for T-mobile and one for the VOIP service. Both lines can be active at the same time. The VOIP quality is good. Dual mode phones like this one are being released sometime this year by different manufacturers. I got my hands on one early 🙂
Here's a pic of it
http://img518.imageshack.us/img518/4198/hipi009tu2.jpg »
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