Marvel's Create Your Own Comic

I've long been a fan of software for creating comic strips, whether using photos like in Comic Life or clip art like Bitstrips For Schools and countless others. But this one takes the prize for the cool factor: Marvel Comics' Create Your Own Comic. Kids can use the Marvel characters they know and love plus really cool backgrounds. Very motivating for the reluctant writers. Of course, kids can use it for more than just graphic narratives; they can have the characters "teach" content (The Incredible Hulk presents How a Bill Becomes a Law). What other ideas do you have for cartooning software? Share your thoughts in the comments.