Quite frankly it's baffling that Nano Assault has not yet been released on 3DS in Europe, particularly given that it was developed by Shin'en, a German developer. I've been dying to play this game ever since it was discussed months and months ago on RFN, so I was delighted to read that yesterday Shin'en tweeted the following
'Great news: 'Nano Assault EX' has been also approved by Nintendo of Europe. Now let's get those Nanites asap into the eShop!'
I'm not sure why it has taken this long, but I'll be glad to finally play it in all it's 3D glory.
*Update - According to the game's official website Nano Assault EX will be released in Europe and Australia on 07/03/2013*