Not sure it's related, but TC 2.3 always recognizes and makes available to mount my three different usb storage devices (1 GB usb stick, 2 GB SanDisk mp3 player, and 2 GB Phillips mp3 player). TC 2.8 recognizes all three, but does not create an automatic mount point for the SanDisk. I have to create /mnt/sdd for it in a terminal and then mount it with "mount -t auto /dev/sdd /mnt/sdd".
It's no big deal, but it is strange.