[UPDATE] The main website has updated with Sky Fortress Zone and Episode Metal in accordance with S4EII‘s launch, including some new screenshots. Thanks to MilesKnightwing for the tip! Prices for the game are now included in the article as well. Original post below!
Showcasing the four main zones and bosses in action, the launch trailer to Sonic 4: Episode II was unveiled today in conjunction with the releases of the PSN and PC versions of the game. The new trailer also unveils the iOS release date: the game will be available off the iTunes App Store on the 17th, two days from now.
SEGA Blog also listed the prices for the different versions of the game: $14.99/€12.99/£9.99/AUD$18.25 off the PlayStation Network and Steam, 1200 points from the Xbox Live Marketplace, and $6.99/€5.49/£4.99/AUD$7.49 for the iOS and Android versions.
Check out the True Blue Initiative and the new screenshots after the jump!