This is everything in syslog that seemed to belong to the Wacom tablet issue:

KERN: usb hub 17: port 0: new device connected
KERN: usb ehci 3: fullspeed device connected, giving up port ownership
KERN: usb hub 2: port 0: new device connected
KERN: usb hub 17: KERN: port 0: device removed
KERN: wacom: add_device() - wacom detected
KERN: wacom:  ... success!
KERN: usb error uhci 0: td (0x02604d00) error: status: 0x18400001; token: 0x002803e1;
KERN: wacom: add_device() - control transfer 2 failed: -2147442667
KERN: void AddOnManager::MessageReceived(BMessage *) what: NMP_
KERN: wacom: device_open() open: 2

.... snapped the hopefully unnecessary bits for your viewing pleasure ...

KERN: wacom: add_device() - wacom detected
KERN: wacom:  ... success!
KERN: usb error uhci 0: td (0x02540a20) error: status: 0x18400001; token: 0x002802e1;
KERN: wacom: add_device() - control transfer 2 failed: -2147442667
KERN: wacom: device_added() - old device: 23
KERN: loaded driver /boot/system/add-ons/kernel/drivers/dev/input/wacom
KERN: bfs: bfs_open_dir:1523: Invalid Argument
KERN: wacom: device_open() open: 2