I have been using Manga Collection MF on my iPad and sometimes Manga Rock Unity. I would really love to have these or something similar for the PB. It's the perfect size for portability so I can read my Manga anywhere.
Anyone have any idea if such things were in development for the PB?
No, the Manga sites work quite differently. These readers access various websites with over 8,000 mangas available. There's no need to download files on your own. The app does that for you automatically.
In Blackberries there is an app called Mango, lets hope Victor decides to port it to playbook
While I don't plan on porting it to Playbook directly, once RIM releases the emulator that allows the PB to run Android apps (after they've been slightly modified) I'll go ahead and do that instead.