Again, while it might certainly be a novel Plug-in, I think it would really be cool if Hal could gather a key word from one of the User's phrases such as, "I like kittens", and suddenly show a picture of a kitten or kittens, etc.
How about, Hal...Find me a picture of a kitten / car / hot air balloon / hummingbird, etc.? That'd be nice as well.
The User also needs a workable method to Stop hal such as the command, No More Pictures. This way Hal would no longer make any suggestions of pictures unless directed once again by the User.
Just throwing some ideas....