Cameron, Miliband and Clegg - for a stronger United Kingdom?

It is only six weeks to the referendum on Scottish independence and, last week, the leaders of the three largest Westminster parties – David Cameron, Ed Miliband and Nick Clegg – published a joint declaration promising to “strengthen” the powers of the Scottish Parliament if the people of Scotland vote no.

I understand the statement sets out support for a “strong Scottish Parliament in a strong United Kingdom” and the “further strengthening of the parliament's powers.”

It added: "The Scottish Labour Party, the Scottish Conservative and Unionist Party and the Scottish Liberal Democrats have each produced our own visions of the new powers which the Scottish Parliament needs.

"We shall put those visions before the Scottish people at the next general election and all three parties guarantee to start delivering more powers for the Scottish Parliament as swiftly as possible in 2015.

"This commitment will deliver a stronger Scottish Parliament in a stronger United Kingdom."

The proponents of Scottish independence have dismissed the statement, which does show the increasing momentum for more powers for Scotland.

But what about Cornwall?

When will be seeing David Cameron, Ed Miliband and Nick Clegg together guaranteeing to support the creation of a strong Cornish Assembly as part their commitment to a “stronger United Kingdom"?