Apparently, Boy & Girl is actually a port of two different, but essentially same Harvest Moon games from PS1. From the IGN review: "Our biggest surprise at the office was that Harvest Moon Boy & Girl is actually just a compilation of two original PlayStation games, put together on one UMD. And they're (virtually) the same game, too. Nowhere on the box or within the instruction manual can this information be found. Harvest Moon "Boy" is actually just a rehashed version of Harvest Moon: Back to Nature, while Harvest Moon "Girl" is just Harvest Moon For Girls, which actually could be called Harvest Moon: Back to Nature, For Girl. They're both the same game, just with slightly different overall narratives and a different main character. Confused? It's okay, we were too."
It's unfortunate to hear that Natsume appears to be pulling a fast one on us. What a shame -- Innocent Life was a pretty beautiful game. It's upsetting to see PSP relegated to (yet another) port of a PS1 game. Publishers, take note: lazily developed games don't get much love from real PSP fanboys.