hi, for those, who haven't tried - trimslice, jetson works out of the box with cubietruck image.
ac100, bbb and cubieboard1 not yet tested (need to allocate some free microsd for bbb and usb flash for ac100), but i don't expect any complication as both devices were supported in those kernels.
i've build several packages (deps for {fedora,centos}-packager and tito)
rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
for repo in /etc/yum.repos.d/epel*; do sed -i -e "s/$basearch/x86_64/g" $repo; done
wget -P /etc/yum.repos.d/ http://rpm.kastnerove.cz/el7/armhfp/indy.repo
cat > /etc/yum.repos.d/bananas7.repo <<EOF [bananas7-testing] name=CentOS CBS - Bananas7 Testing baseurl=http://cbs.centos.org/repos/bananas7-testing/x86_64/os/ enabled=1 gpgcheck=0 EOF
yum install {centos,fedora}-packager {fed,cent}pkg tito
if something from above doesn't work it is possible, as i dig it from my memory almost sleeping :)
best regards jiri kastner