According to https://launchpad.net/isight-firmware-tools isight-firmware-tools-1.6 is available from http://launchpad.net/isight-firmware-tools/main/1.6/+download/isight-firmware-tools-1.6.tar.gz
isight-firmware-tools-1.6-1.fc15 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/isight-firmware-tools-1.6-1.fc15
Just wanted to drop a note, that as of right now I can not get cheese to work. I think this is related to https://bugzilla.redhat.com/show_bug.cgi?id=682506 and not to the isight-firnware-tools package or camera itself as I am able to capture video fine with vlc.
Package isight-firmware-tools-1.6-1.fc15: * should fix your issue, * was pushed to the Fedora 15 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing isight-firmware-tools-1.6-1.fc15' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/isight-firmware-tools-1.6-1.fc15 then log in and leave karma (feedback).
isight-firmware-tools-1.6-1.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.