The name is similar and is causing confusion. So, in light of this: why was the name "Dash" chosen?
it seems that Dash was suggested by someone one BCT a while ago as an abbreviation (of sorts) for Digital Cash. but I'm pretty sure that was mentioned in the article you've read. If you're really interested, go back a couple of hundred pages in this thread, there is an extremely exhaustive discussion of Dashcoin, Dash the wahsing powder, and a lot of other things using similar names, as well as the rationale for the name switch
Never-the-less, Darkcoin's change of name to Dash could open up a legal minefield, which could rear its ugly head in the not too distant future.
So, considering all this, why was the name "Dash" chosen?