I didn't see it yet anyway Idolmaster will not be released in the US due to the whole concept of the game which revolves around J-Pop is still a niche market in the US. There is one more factor text, and a lot of it that has to be translated, The 1st Idolmaster has over 1200 events including DLC mostly text based, SP has around 1000 with DLC same way. There is Idolmaster: Dearly Stars for the DS which is one of the great September releases, however this game switches roles from the producer like in The Idolmaster, The Idolmaster: Live for You, and SP to the idols themselves and instead of the producer planning the Idols' every move you participate in and schedule events as the Idol you choose. This has no chance of a US release as well. I suggest you play SP if you own a PSP and the DS version.