The latest version of udev is sitting in Testing now. As of version 076, udev will now perform all the functions that hotplug used to handle, thus removing the need for it. As well, the latest udev will want to remove pcmcia-cs since it has been deprecated in favor of pcmciautils.
Note that this is all 2.6 stuff. If you are still running a 2.4 kernel, stay with hotplug and pcmcia-cs. These packages will stay in Current for the time being (as long as we have an official kernel24 package).
You can read the mailing list discussion here.