According to my retailer, he is one of the first to get one. He ordered it right on the retailer indroduction, and as part of the biggest chain of photo stores in holland, He was sure to get me one in april. The price for the D 100 is in Holland around € 2675 as mentioned before. But I got a big discount (price the retailer pays for it)
So hopefully I can inform you somewhere around april!
PS the MB D-100 is the battarypack as shown in http://www.digitalphotographs.org/fullstorynikon.htm>