I'd give him a card for missing.Intent to get the ball, no contact was made, play on.
Ronaldo is the most dislikekable player in football. His attitude, arrogance and selfishness couldn't be more evident.
I don't think many would be too concerned if Palacios had of accidentally made contact.
Unfortunately with Howard Webb in charge he probably would've done something stupid, like award a red card or something perverse.