To celebrate, Square Enix is putting all of their other games on sale, including dropping Final Fantasy 1 and 2 down to $7 each. If you've been waiting to pick up one of their other titles, now's your chance, and maybe you can add the money you save into the price of the new game.
And finally, Sonic the Hedgehog 2 is now out from Sega for the iPhone. Unfortunately, the game uses the same Sega emulator as all of their other games, so it's not exactly glitch-free or polished gameplay. Still, it's playable, and it's definitely the second Sonic game, recreated on the smaller screen. You can pick it up for $5.99.