This looked like a really useful slider and unlike others I don't object too much to the advertising (AFAIR, it appears only on the settings pages).
However, and this is an utterly frustrating element of too many WordPress Plugins, it hasn't been properly tested under E_ALL or E_STRICT error reporting. As a result, there are loads of small errors that appear on the site. The slider appears under a long list of error messages.
Some say this doesn't matter, but as a developer I want to be able to work with full error reporting in my development environment, and I expect plugins to be equally compliant. It hardly inspires confidence in the ability of the developer, and it also affects performance (just because you've switched the error reporting off, it doesn't mean the error has gone away).
Please fix this and this will be an excellent plugin...