This is the change that people are talking about. A new political map for Scotland, that is SNP-coloured, not Red Tory coloured:
Chris Hanretty, Reader in Politics at the University of East Anglia and one of the team behind Election Forecast UK, is interviewed in today's Financial Times blog. He reminds us that "party identification" ('I was born a Labour voter, and always will vote Labour') is still the strongest prediction of voting patterns.
It appears that the SNP have broken that pattern in Scotland, but Hanretty is urging caution.
We still have to get every door chapped, every vote in.