Yes, really. I'd say, why didn't someone think of that long ago, but they did. Well, at least about three years or so ago, which is when PiBoIdMo was started by Tara Lazar. She gave it a dry run in 2008, and introduced it to other writers in 2009. Now it's firmly established as the picture book equivalent of the better known Nanowrimo.
The general idea of the Picture Book Idea Month is not quite the same as National Novel Writing Month. Instead of writing a first draft of 50,000 words as is done in Nanowrimo, writers are supposed to come up with thirty picture book ideas, one per day, through the month of November. The goal is to become a veritable idea generating machine, creating plenty of material for you to work with when the month is over. Also, there is no upload (like Nanowrimo) or post of the ideas you come up with. This means you'll be operating on the honor system in that you actually did come up with the 30 ideas.
Oh, and did I mention that there will be prizes? For PiBoIdMo participants who hang in there to the end of the month, Tara has lined up some pretty great prizes to win. I don't know about you, but next to picture books, I love prizes.
So if you've never been there, take a quick trip to Tara's website and find out more about her and the PiBpIdMo event, but don't wait too long. November is almost here, and to be eligible for those great prizes, you need to participate every day.