My expecting mare is a Friesian with the Dutch/American registry FPS/FHANA. According to their rules, foals born in the year 2012 have to have names that start with the letters M, N, or O. The name doesn't have to be Dutch, but it can be a nice nod to tradition.
For a colt, I'm thinking either Merel (Dutch for blackbird, which I think is just right for a Friesian) or Nautilus (nicknamed Nox). For a filly, I like Nocturne or Nautica (again, Nox), Oceana (Ana), Minuet (Minny), or Margaretta (Dutch again).
Feel free to chime in or share thoughts on names for your own 2012 foals!