No, hardly anyone is saying buy gold which is why it's far away from being in a bubble. People must learn to use the word correctly, ie just because something goes up, it's not a bubble.
The only people talking about Gold are those in or who have a connection to the financial markets. Prices enter bubbles when people OUTSIDE of the markets start to know and hear about it.
Go down to your local supermarket, and start asking people about Gold, its price, and whether it's up or down over the last 2-3 years. 80% of them won't have a clue. That is why Gold is far from being in a bubble.
Contrast that with the 2 last big bubbles we had, (US) property and internet stocks. If you had gone to your local supermarket and asked about property/internet stocks, 80%+ would have known what's going on etc, hence it was a bubble.
Summary: Virtually nobody outside the markets knows anything about Gold, hence NO bubble, it's just a strong market. Plus, another important point to realise is how can Gold be in a bubble when so many of the Gold Mining shares are down this year, again, hardly a bubble.
PS. Also whoever says Gold is going to be part of some new currency is either an idiot or has something to sell you. Common sense says it's impossible because there's not enough gold to go around these days. Same reason why no currency can ever be backed by Gold, not enough.