Apparently the comicbook reading firmware update for the PSP is now available according to the Playstation comics official twitter page. Although I believe the digital comics won't be available until December, they've just launched a new website http://www.playstationdigitalcomics.com/ with some trailers and info. We've also been sent some screenshots of how Insomnia books will look on the device.
You can see more screenshots from Cages and Burke & Hare over at Insomnia's Red Eye Blog.
..and finally, "2012: A final prayer' Anthology (in which I've drawn an eight page story by Bob Heske) is available to buy via Amazon, Zaldiva and as a digital download via Drive Thru Comics. The book has been getting glowing reviews from sites such as Bookgasm (where you can also win a copy by entering their competition... but only if you're from America or Canada). What I've seen of the final collection looks fantastic so pick one up.