I had a similar experience with the Edgy Beta alternate installer. I did the command-line-only installation. No normal user account was created.
** Attachment added: "questions.dat" http://librarian.launchpad.net/4827725/questions.dat -- edgy knot3 installs without asking for a username https://launchpad.net/bugs/60888 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs