Last weekend was Denver Comic Con, and several contributors to the MLP: FiM comic books were on hand at the show. The convention held a panel specifically for the comic books, and several familiar names were on hand to talk about sequential horsies.
Panelists were Andy Price and Katie Cook from the mainline series, Thom Zahler (author/artist of the Twilight Sparkle Micro) and Tony Fleecs (cover artist and artist for the Rainbow Dash and Fluttershy micros).
To listen to the recording, head over to their site and sit back.