We think we've found an upside to this announcement (beyond learning that there's a comic book based on the Suicide Girls) -- the end of PSP comic updates means you can now collect them all. Don't you want to be the first to own the full 4,000+ issue PSP comics collection?
There may be more comics in the future, just not on PSP. Sony said that "The Digital Comics Team will continue to work on bringing the comic service to other Sony devices." Imagine using the PlayStation Vita's rear touchpad to -- nope, we can't think of anything that rear touchpad would have to do with a comic book.