You were moving too fast to notice :)
But I didn't stop to kiss it because any sudden manifestations of potential princes would have left me with some explaining (and verification of royal bloodlines) to do.
You'd probably have a better chance of finding a prince in Oslo than you would in Adelaide. (There appear to be two with that title, the King's son and grandson, although whether or not they were in town at the time is unknown).
Some may recall the speculation which surfaced some years back that 1990s Fremantle player Scott Chisholm may have been descended from a fling that a visiting British prince may have had when in WA in the 1920s. I was somewhat amused at the time by thinking about what the reaction would be (not least from the monarchist establishment) had it transpired that the rightful claimant to the throne was an Aboriginal footballer in Perth.
The most-likely prince to attend orienteering is the Danish one - wasn't he present @WOC 2006?
He was indeed. No sign of any Swedish royals at O-ringen, although the Prime Minister was here on Sunday before cutting short his visit to take charge of the bushfire response (or at least be seen to be doing so - hopefully the actual decisions are being made by the emergency managers).