Sticking with the Cityzap, a launch event was held in York today to promote the services, 3608 and 3609 were used in the event as shown here (they were still setting up when I took this photo, hence the boxes).
Transdev: 3608 / YL51ZAP & 3609 / YL02ZAP by Matthew Jimmison, on Flickr
I believe that there will be an event in Leeds tomorrow.
Also, as you may have noticed 3608 is now registered as YL51 ZAP and 3609 is now registered as YL02 ZAP.
RE: Yorkshire Bus Operations