The Netherlands will issue a commemorative coin with values of 5€ and 10€ which got a QR Code on the backside on the 22th Juni.
The coin will minted for the 100th anniversary of the Royal Dutch Mint in Utrecht.
More information about the coin one can find in the online shop of the mint (NL).
Perhaps it would be a great idea for banknotes too: a QR code with Value, Printercode and serialnumber on every note 
Quelle: http://www.golem.de/1106/84308.html (DE)
The additional domain eurobilltracker.eu is replaced by a redirect to the .com-domain. So all services are now only on the .com domain. After calling eurobilltracker.eu the URL will change to eurobilltracker.com in the address bar.
The .eu-domain will kept as a redirection. There is no change for the user, everything will work as usual.
Source: EBT News auf Twitter and Forum
As avij wrote in the forum and on the EBT-Meta-Page, EBT (only the main page, not the forum) will participate on the World IPv6 Day on the 08. Juni 2011.
On this day EBT will be available on IPv6 in addition to the existing IPv4-System. This should be absolutely unnoticed to normal Users. In very rare conditions problems may happen. In this case one can report them in the forum.