Slim version of Jetpack unlinked from WordPress.com :) Supercharge your self-hosted wp site even you're NOT WP.COM users.
How many files are touched? Use a comparing tool to find out. But as I remember, the list is:
Modified: jetpack.php(->slimjetpack.php), class.jetpack.php
Removed: files and folders of all removed modules
Not all unused blocks are removed from jetpack.php which might cause problems but if it works,just ignore them :-)
I believe the functions I touched won't cause security issues, but use at your own risk!
If you don't like certain modules, just delete them :-)
If you need a new module from Jetpack future releases, copy the files into Slim Jetpack and try.
It should work without problem :)