Hmmm...I used the global feature more often than the individual page option, I think. I guess it will be interesting to see if it really was unnecessary. I'm definitely going to miss it.
I was trying to figure out how to get a single slideshow to display globally since I'd also need to cover archive pages, etc. I hadn't thought of inserting the short code directly into the header.php file - I'll certainly do that for now to fix my sites, but it reduces the portability of my theme.
Overall, this is a great plugin - it's a tricky jQuery plugin to try to integrate into WordPress just because of the way it needs to be configured, but I think you've done a good job of figuring out how to make that work. I appreciate it, and the work you've put into the plugin. :-)