Stephen Davis, president of Hasbro Studios, was recently cornered at Comic Con for a quick interview on all the ip's they are currently running. Friendship is Magic came up first, with a few questions about the fandom as a whole, as well as why he personally thinks it's so successful.
Sadly, the Collider pulled the whole "Google pony and grab something old" thing, so we have old ponies as the banner. Hopefully they read this and update it! Friendship is Magic guys!