Looking through Twitter, a lot of people are suggesting that Plaid did a deal with the Tories and UKIP - it appears that they haven't done a deal. Leanne Wood was put forward as a nomination from Plaid (which they are perfectly entitled to do) and the Tories and UKIP voted for her.
It'll be very interesting to see how the media spin this.
I think this must be Tory and UKIP mischief making. As has been pointed out, actually doing a deal with them when there aren't enough votes for an actual coalition anyway makes no sense at all from Plaid's point of view. Even if there were the votes, it would be a "courageous" strategy for them. Fancy holding the Rhondda after doing a deal with the Tories?