In reply to IainRUK:
> 2 Scottish Parliament established, May 1999
> 2.1 Opening of new Scottish Parliament building (2004)
> 2.2 Powers over Scottish railways transferred (2005)
> 2.3 Scottish Executive becomes Scottish Government (2007)
> 2.4 Calman Commission (2007)
> 2.5 Powers transferred over planning and nature conservation matters at sea (2008)
> 2.6 Referendum Bill 2010
> When you look at the history… there was constant devolution until the referendum bill, once that happened there is no point in discussing further devolution until the vote is held.
you missed out the Scotland Act, which so many have - 2012 - transfers greater income tax powers to Scottish Parliament.
For what its' worth, I think the answer to the original question depends on how close the result is. If its 51.5%-49.5%, I wouldn't be at all surprised if the SNP held a 2nd referendum before the parliamentary term was out - maybe in May 2016, the day of the next Scottish elections. If it's 65-35, then realistically it's all put to bed for at least a couple of election cycles.
As for the 'once in a generation' thing, I tend to be cynical about those comments and file them in 'they would say that, wouldn't they'.