More than half of people in Wales would vote for the Welsh assembly to have full law-making powers, according to an exclusive BBC Wales/ICM poll.
A total of 52% said they would vote for full law-making powers in a referendum, 39% said they would vote against.
It is the first time a poll has shown majority support for full powers.
But it does not indicate the shift of opinion in favour of further devolution is likely to be enough to tempt political leaders to call a referendum.
HOW WOULD YOU VOTE IN A REFERENDUM?
In favour of turning assembly into full law-making parliament: 52%
Against turning assembly into full law-making parliament: 39%
Don't know: 9%
Source: BBC Wales/ICM poll
In an equivalent poll for the BBC a year ago, 49% of people were in favour of full assembly law-making powers, with 42% against and 9% undecided.
In 2007, the result was 47% for full law-making powers and 44% against.
In this latest survey, when people were asked how Wales should be governed, the highest proportion, 34%, said they would like to see a full law-making Welsh parliament with taxation powers, but remaining part of the UK.
Some 10% said they would like a full law-making parliament within the UK with no taxation powers - the only option in a referendum under current legislation.
ASSEMBLY POWERS SUPPORT
Law-making Welsh parliament with tax powers in UK: 34%
Law-making Welsh parliament with no tax powers in UK: 10%
Independent Wales outside UK but in EU: 8%
Independent Wales outside UK and EU: 5%
Status quo: 21%
Abolish assembly 19%
Don't know: 4%
Source: BBC Wales/ICM poll
The gap between yes and no voters has grown from 7% to 13% in the past year without any campaigning from pro-devolutionary forces - it seems like a good time to be pushing the case for a referendum. If we don't get one before the Tories come to power, can we really expect Cameron to deliver?