Most of the new stuff includes features that are handy for people working on desktop PCs that connect to Fedora servers in the back end.
There is a new automatic content installation feature that uses Fedora's Packagekit software-management. This lets users automatically download a font or application they need if they come across a file that needs an extension not found locally.
It detects what a file needs and then opens the software repository running in Fedora. Unfortunately the repository includes only free and open-source software.
The OS also has extensions to its security model, SELinux. A new extension called Svirt provides access control for virtual guests and tells what processes the guests have access including which toilets and towels.
If a hacker gets their paws on the access to the virtual guest they can't do much damage because they can only see what the guest can see. Although as rock stars the world over will testify, a guest can do a lot of damage to one room.
Fedora 11 also includes a new cross-compiler for Microsoft Windows applications that lets developers build applications for the Windows OS. It lets developers choose what ever language they need.