Creative...but I don't think it would have the same fluidity to Google's Trek. The images wouldn't be as up to date or "real time" as they could be because you'

Creative...but I don't think it would have the same fluidity to Google's Trek. The images wouldn't be as up to date or "real time" as they could be because you'd be caching images that are potentially several days or weeks old. And if you scripted a time limit for images, e.g. only within a few hours, you'd heavily limit the amount of usable images you had. With "agents in the field" Google could potentially update its feeds whenever and as often as it needed. The difference would be having an in-house image-generating infrastructure or...well...tag-searching Instagram.