I can confirm this on an up-to-date Karmic install
$uname -a Linux dv7-karmic 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 GNU/Linux
$sudo apt-cache policy ntpdate ntpdate: Installed: 1:4.2.4p6+dfsg-1ubuntu5.1 Candidate: 1:4.2.4p6+dfsg-1ubuntu5.1
And in Lucid $ uname -a Linux ubuntu 2.6.32-10-generic #14-Ubuntu SMP Thu Jan 7 17:38:40 UTC 2010 i686 GNU/Linux
$ sudo apt-cache policy ntpdate ntpdate: Installed: 1:4.2.4p6+dfsg-2ubuntu4 Candidate: 1:4.2.4p6+dfsg-2ubuntu4
I can confirm this on an up-to-date Karmic install
$uname -a
Linux dv7-karmic 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 GNU/Linux
$sudo apt-cache policy ntpdate dfsg-1ubuntu5. 1 dfsg-1ubuntu5. 1
ntpdate:
Installed: 1:4.2.4p6+
Candidate: 1:4.2.4p6+
And in Lucid
$ uname -a
Linux ubuntu 2.6.32-10-generic #14-Ubuntu SMP Thu Jan 7 17:38:40 UTC 2010 i686 GNU/Linux
$ sudo apt-cache policy ntpdate dfsg-2ubuntu4 dfsg-2ubuntu4
ntpdate:
Installed: 1:4.2.4p6+
Candidate: 1:4.2.4p6+