Hey! I'm very excited you updated this plugin. I've been trying to come up with my own frontend posting system solution for a while and this has almost everything I need! (almost)
First of all, it would be great if there was an option to allow only registered users to post on the site and therefore assign the posts to their usernames instead of all to one username. This would also lend itself to creating a dashboard for users using your handy template tags and thorough documentation.
Secondly, I really like that you included a way for us to display the images in posts but if was there was a way for the user to choose a featured image, which could then be used natively by WP to display easily across the whole site, that would be super helpful.
Finally, it would be great to see the form adapted to also be an "edit" form so that users can updated their posts from the front end as well.
Great work so far! Thanks for the awesome plugin.