Hakuoki is available in Standard and Premium editions on both platforms. The Standard edition is available for free and lets you play through the prologue.
Idea Factory is starting to release otome games for PlayStation Vita. The first two titles Amnesia V Edition and Hakuoki: Mirror Blossom Record are ports of two classic games, the original Amnesia and Hakuoki.
For the most part, otome titles have been ignored, which is why we're interested in Aksys who has been localizing romance games for the West. We spoke with Ben Bateman to talk about Sweet Fuse and the state of the otome market.