And a number of people are busy reading between the lines.
On his Blether with Brian blog, the BBC's Scottish political editor Brian Taylor says the Lib Dems:
remain leery of Mr Salmond and his SNP. But they argue that it is significant that the SNP are now canvassing constitutional options short of independence.Meanwhile, Tom Griffin writes on his Green Ribbon blog:
They say further that this takes the SNP onto LibDem territory - strengthening devolution within the UK.
They say all parties can talk around this objective.
Being a student of subtle politics, I instantly wondered whether this divergent response signalled a willingness for the Lib Dems to talk to the SNP about coalition at Holyrood.
This, I was told, was an issue for the SNP, as the incumbent Executive. Which certainly isn't a Yes. But it isn't exactly a blunt No either.
Longer term - probably much longer term - is it just conceivable that an SNP/LibDem pact could be created, perhaps once the issue of an independence referendum is tabled at Holyrood? And duly defeated?
The SNP are clearly more flexible over the referendum issue than Labour are over fiscal autonomy. A coalition would allow the Lib Dems to pursue their distinct federalist vision, whereas at the moment they are in danger of becoming simply a redundant third unionist party.And, whatever you think of the SNP or independence, if the only way the Union can be maintained is by denying the Scottish people a vote on the subject, then it really must be in trouble.
It would also differentiate the Lib Dems from both Labour and the Tories at Westminster, and draw a line under Menzies Campbell's disastrous flirtation with Gordon Brown.