After a long delay, I finally wrote a text walkthrough for Nancy Drew: The Silent Spy. Much to my surprise, it turns out that GameFAQs doesn't think the game has been released yet.
In fact, both Nancy Drew #29 and Nancy Drew #30 are listed as unreleased. Silly GameFAQs.
I'm also waiting for GameFAQs to list "Left in the Dark: No One On Board" as a game. The first third-to-half of that game was fun. It was also well-structured, so writing a walkthrough would be easy. But mostly, I like the game because you can press F1 to skip the hidden objects challenges. Ha ha, yes!