Thanks to a Howard Forums user who received the code in a text from Tracfone and shared it on the forum we now have one.
The code is 2012D and it gives you a $10 off any phone on tracfone.com that's priced at $49.99 or higher. The code is good through Dec 31, 2012
It even works on phones that come with a free gift card like the new Samsung S390G and new LG 530G BlackBerry style QWERTY phones. Both cost $49.99 and come with a $10 gift card. Use the code to cut the effective cost to just $29.99. Shipping is free too.
Source: Howard Forums