Today's free iTunes 12 days of Christmas download is Gameloft's 'Fishing Kings'.
Not something that I would have bought myself, but Gamesloft stuff is usually really well done, so well worth a look.
The 3D graphics look good on the iPhone, and, well it is Free!
Go get it via the 12 days app now.
I have just picked this up on my iPad too, and found that it is the full HD iPad specific version - Nice touch.