Did the Nook outsold the Kindle in March?

Digitimes says that Barnes & Noble's Nook had a 53% of the total e-reader market in March, outselling the Kindle. They say that the strong shipments are partly because it is new, and partly because it is sold in B&N's own retail outlets.

The Nook costs 259$, and the Kindle 2 US edition) costs the same.