The Plaid Cymru leader made a hush-hush visit to see preparations for the sporting spectacular in east London yesterday.
Was the sports fan - and acquaintance of Olympic champions past - there to live the Olympic dream, to fantasise about entering the stadium at the head of the marathon to the roars of a capacity crowd or standing on the gold medal podium as God Save the Queen is played?
Er, probably not. According to Plaid's Westminster leader, Elfyn Llwyd, the deputy FM was there to store up "ammunition for later use".
Mr Llwyd believes promises that the London Olympics would benefit the whole of the UK have come to nothing and that the loss of lottery funding means some youngsters in Wales are actually discouraged from taking up sport.
Few Welsh companies have bid, let alone won some of the lucrative contracts on offer. Plaid feel the south-east of England will disproportionately benefit from the whole festival while the rest of us pay for it.
Or did the suggestion he was looking for ammunition mean Mr Jones was after a place in the shooting team?