I think Xeno010 has done a awesome job on all the features he has added to wp pro quiz. I know I look forward to seeing the program enhancement when you can look back and see each individual user answers for all the questions on a test. This is an important feature to have. If a test taker argues over a test question, you can view his answer and then explain why his answer is not correct.
Feature 1.5, I would also like to suggest having the ability to view a running average score of all the test taken. :)
Feature #2 that I hope Xeno010 will add, is the ability to change button text, button color, and test text colors for wp pro quiz. This will make life easier for users who want customize wp pro quiz, with the theme they are using, so that the test colors blend in well with the the site theme. Its not that I need this feature, but many times users ask how to change button text, or colors to match their website theme.