Carrie F - as a mom of two I do get annoyed by wordless/sparsely worded picture books, especially if the illustrations are lacking. Hey, it's 8pm, I've been running around all day, and now I have to invent text for someone else's book? Sometimes fun, usually irksome.
Anyhoo, on the same topic, I'm thinking of submitting to Flashlight. Their submissions page requests MS in the 1000 word range. Most of my work is 450-600 words, and the story I plan to submit will probably be about 650/700 tops when I stop messing with it. Wonder if that's too short?