Oh Nintendo, I have such a love/hate relationship with you recently. File this one in the "hate" column: the 3DS eShop has been delayed until June 6 in the US, and June 7 in Japan. Yes, that's the same eShop that originally was going to launch with the system, then got a delay to an unspecified May release. But hey, with so many 3DS games coming out this month, who needs the eShop, right?
Nintendo will launch the 3DS eShop on June 6, then hold its E3 press conference on June 7. With both Microsoft and Sony holding their E3 press conferences on June 6, any 3DS eShop news is likely to be overshadowed until Nintendo's press conference anyway. Then again, Nintendo specifically says the eShop update will arrive "the evening of June 6 Pacific time," so more likely it's just an early launch so that everything is up and running for the June 7 press conference.
Now for the good news. The eShop isn't the only new addition arriving on June 6, as it will be joined by the long awaited 3DS internet browser. The 3DS eShop will also launch downloadable 3DSWare, allow for transfers of DSiWare to a 3DS system, and introduce the 3DS Virtual Console which will feature Game Boy, Game Boy Color, Game Gear, TurboGrafx-16, and classic games updated with 3D effects.
Out of what I can only assume is tradition, Nintendo has made no announcement yet about when the eShop will arrive in Europe. I guess Nintendo just really likes the old adage "better late than never."