Well, well, well, it ain't just me saying that a Labour-SNP tie-up is not a foregone conclusion. Toby Young making many of the same points I've been making. Which is that we may have a stitch-up, not a tie-up.
Miliband has said no to a deal with SNP. He'd forfeit a Labour government first. Sturgeon has said she would block a Labour budget without a deal.
Either Miliband has to walk away from SNP, completely. Or, he breaks his word, and is branded (pun intended) for the rest of his political career. Along with likely dooming Labour in England to oblivion for a generation.