The link from the prior SD on this phone still works, and it has dropped from $40 to $30. Mine came in perfect condition other than a scuff on the back case. An oldie but a goodie. Replaceable battery if yours comes dead.
This deal only appears through the SD link, otherwise it is $70. If for some reason the above copied link does not work, go to the 8-28 thread and click there.
Go ahead and TD if you like, that seems to be the case with all the other recent Freedompop strings. But:
Use a capped value credit card or VCC (I used $40), follow the wiki for the extras cancel tutorials, add some Freedomfriends to get up to 1000mb data, and make at least a call a month through the app, Then you have a true free phone. It charged $5 to downgrade to true free, but that goes into the account so it also allows you to cancel topup.