I do not think that remastering is possible with Fedora 11 at this time using "livecd-tools" or Revisor. I haven't been able to create a decent live cd with extra packages since Fedora 9. With all the new stuff like ext4 and such it may be a while before things get sorted with creating live images.
EDIT: OK did some digging in the available kickstart files and fiddled with them via enabling repos free and nonfree but had no luck creating a live image.
The good part is that while browsing the packages in yumex there was a couple of packages from rpmfusion that contained rpmfusion-free and non-free remix
kickstart files to be used with the official fedora .ks files. I was able to successfully create a livecd image with rpmfusion packages and installed it to a 4GB usb stick
and it works well. The finished size was 781.9MB to big for a cd but works for the 4GB usb. I used livecd-creator to produce the image.