As a person who long picked Rudd as a dud before the rest of the nation caught up with the idea, I really cannot see why the government should hesitate in not nominating him. Honestly, a politician dumped from the top job by his own party for having a disastrous management style should have no reasonable expectation that his nation would nominate him for such a high profile job where management is a key issue. That he got a second run at the top job was out of sheer party desperation as to how to resolve internal conflict, and not due to any significant re-assessment of his talents.
Besides this, his actual performance when meeting world leaders when he was PM was embarrassing.
And furthermore, on recent media appearances, he has looked to me to be very pale and very puffy faced - and while I think Right wingers are often ridiculous and immature in honing in on odd personal appearance in a single photo, I genuinely got the impression that Rudd does not look very healthy (and we know he has had significant health problems in the past.) In all honesty, despite any temporary hurt to his ego, Turnbull would probably be doing him a long term favour by not nominating him...
Update: so Rudd doesn't get nominated, although it looks like Malcolm may have led him to believe he would be.
Big deal, Kevin: do you know how much the public will care about this - not one iota. So you may have wasted a year or two in flying around the world trying to schmooze the right people. Meh - you had a hobby, and now it's ended. Go do something full time for a charity, or learn to paint in watercolours, or anything: we really don't care. You're not short of a quid - but here's a suggestion: find a hobby that doesn't depend on people liking you.
I also endorse Jason Soon's tweet on this:
Rudd's response to not being supported is a perfect example of why he should not be supported.