"Why?" The New York Times investigates:
“We are responding to the desire by our fans to experience the brand in more ways,” said John A. Frascotti, Hasbro’s chief marketing officer. “They imagined themselves as which pony they would be or which pony they identified with the most.” So Hasbro created Equestria Girls, a parallel world in which the My Little Pony characters were reconceived as teenage girls in high school.
Seriously, it's happening every day now, people coming up to us and saying "I want to experience your brand in more ways. Could you lose the hooves and snouts?"
(Video link) Bronies + Trekkies = Brekkies, and then geekdom exploded into sparkles and lasers! Happy New Year, everypony! Live long and prosper! (via Eric Kwun on Twitter)
Related: WATCHPONIES: Watchmen/My Little Pony mashup
I'm a little late back to the party, but here's even more coverage
of the now-infamous NYT My Little Pony Correction. [Romenesko] Previously
At The Awl
, Kase Wickman covers the first major Brony convention, an "explosion of wild color ... the glitter, the rainbows, the homemade pony-mane hooded sweatshirts, all of it bright and sparkly enough to send any pop culture-aware preteen princess into spasms of jealousy