I created some plugin scripts . they are :
Please merge atleast the kubuntu.sh script to the upstream. Because, most people consider kubuntu as a separate distro. changing name to ubuntu2 is not the best idea since it would be confusing to know which one is kubuntu while booting. It also would not be a good idea if one wish to give a disk with both ubuntu and kubuntu to a friend since the friend won't know which one is kubuntu.
kubuntu and ubuntu 32 and 64 bits are for people who wish to include both 32 and 64 bit versions of ubuntu