Several Europeans have posted on the official Oculus forums stating that they have recieved their dev kits, so it seems that the first European batch of Rift preorders is in transit as we speak.
However, it seems the status system at Oculus is still lagging behind, thus people are not getting notices of their packages being shipped.
So how do you track your shipment without the tracking code? Just follow these steps:
1. Go to ups.com
2. Select "Tracking" then "Track by reference"
3. Enter your 5-digit order number in "Shipment reference"
4. Choose your country. (And optionally your postal/zip code)
5. Hit "Track". If your devkit is on the way, you should get the tracking info for your order.