I suppose what I ought to do for all my curiousity about pinky-pink DS games is find one of those rental services, if I can find one that will a) actually carry DS games (some don't!) and b) include games other than the most popular.
Then I can contribute usefully to the internet by reviewing things no one else will touch! :)
(checking) Gamefly does cover the Imagine series. And even (*shudder*) My Boyfriend. No sign of the Unicorn game though. Also, I don't live in the US.