Yes, I'm definately planning to do this within about a month or so. My hack will integrate into the attachments system. I'm not actually going to use oekakipoteto, I'm simply going to integrate the java drawing apps. (OekakiPoteto is a forums system in its own right)
I'm mainly doing this so that oekakis can be posted into my gallery hack (which also uses vB's attachments), however theres no reason why oekaki integration cant be a seperate hack.
Once I get it out though, I'd definately recommend installing the gallery hack as well, because it offers a nicer way of displaying things.