This is really cool and, while not disrespecting the other guy's addon, a better piece of work to administer then 'the other' addon that does the same.
I'll echo my support from the other addons thread for something though;
AJAXifying it, making the 'tags' field autoupdate based on the title input. Make it just do the calculations and populate the 'tags' field when focus is removed from the 'title' field.
(Not being a coder enables me to use 'just' in all sorts of places, especially those where I know there'll be a lot of work to get it going

.)