Changed the status of this bug to confirmed as further discussion on the TKL forums (http://www.turnkeylinux.org/forum/support/20100928/tkl-lucid-core-apt-get-upgrade-freeze-installing-udev-151-121) confirms that is still an issue for many.
My experience of this bug has only been in virtual environments: KVM (as supplied by ProxmoxVE v1.6 & v1.7) and VirtualBox (as supplied by Ubuntu Lucid - think its v3.2.0?). But one user has stated that they have experienced it on 3 different hardware systems. As I noted in a post the problem doesn't occur in a chroot, even on a system where the base install experiences it.
This bug also affects udev 1.52 (as supplied with TKL v11.0RC)