First of all, sorry for the late reply.
Initially I had the idea to suggest to make some very small tutorials, specific for every action, some sort of Playmaker video manual: how do you use this node, what can you do with it (small case illustrations), things to avoid, etc.
I know, this can be a huge amount of work, almost an impossible one, but maybe starting with the most important ( or more often used actions) may be a good start.
And later, can be continued in different tutorial series, each series adding on top of the previous ones to the Playmaker Video Manual Series.
If, from vary reasons, you think this is not a good idea, I`ll be really happy with a tower defense game tutorial.
If combined with touch events, being a mobile targeted game tutorial it will be even better.
I think I`ll be the first one to buy it.
Thanks again for your tutorials. they are really easy to follow and indeed very very helpful.
When do you think we`ll have the pleasure of a new tutorial series?