I recently published a book on plugin development
with Packt Publishing.
I have accumulated a lot of user questions while I was working on that project and am slowly catching up answer them. Before asking a new question, I recommend that you read through all comments here, through the forum on the wordpress.org and through the FAQ before asking questions. I will try to get back to you as soon as possible. Thank you for your understanding.
If you feel generous and really like this plugin, here is a donation link on Paypal: