Although I have now written 3 flash novels and one flash script, I don't really have aspirations in that direction.
Still, they count as finger exercises in different modes of writing, and I hope that when I settle down to focus on the 'autobiography' that all this practice may prove useful.
Structure ("lives have a beginning, middle and end, but not necessarily in that order"), tempo, conflict, characters, dialogue and all that - tricks to make my own story more interesting, perhaps.
More news on this project soon. I do think it could prove a saleable item at conventions...