Hi Andreas,
Yes, of course.
The delay has basically been down to the risk of patent litigation.
At least one Wikimedia chapter has received letters from people who purport that QRpedia infringes on various patents.
We do not believe this is the case and do not believe the probability of being involved in actual litigation is high. However if it did happen it could be very costly.
So we have been taking advice on how to deal with this risk, and have reached a solution which will work. Roger and Terence have been very patiently waiting for this to be sorted out - apologies to them, and everyone else waiting for an outcome, for the delay.
Chris