Nintendo's E3 press conference had its ups and downs this year. But midway through, it had a big positive for a small part of the audience: Golden Sun DS. Though not as shocking an announcement as Metroid: Other M or as flashy as Mario Galaxy 2, it was easily the most important news for the DS, though that isn't saying a lot. But why did the third game in a cult GBA series last seen in 2003 garner such applause at the conference? This primer will clue you in on why Golden Sun is worthy of your attention.