The plan is definitely to include a Facebook application, right? At the very least a deck gallery that rotates through images of the 'mon kids have collected? I know Facebook users have to be 14 years old and the target audience of this game might be a bit younger, but not taking advantage of the power social networking would be a crime.
Here's why: http://www.sirlin.net/blog/2010/2/22/external-rewards-and-jesse-schells-amazing-lecture.html
It's a video presentation nearly 30 minutes long. It's fairly well done, but you can skim parts of it and still get the main idea. The presenter talks about the psychology of why certain types of games have become enormously successful in ways people wouldn't have predicted. I feel that it's important to keep these sorts of things in mind when trying to craft messages-into-games people will care about, pay attention to, or at least remember.
Maybe the application could be similar to the Red List Species of the Day web badges? Here's the feed. It can be embedded in any website sidebar, easy as you please.
Seems like a pretty clever way to spread the word on biodiversity in an innocuous and "oh this looks interesting, why don't I click it?" sort of way. Phylomon needs to do the same thing for web-savvy kids.
I know there are extensive plans for the web side of the game, but I wanted to add my $0.02...