Wandered into the Portland Oregon Chrome store and what did I find? Several messenger bags in the elusive Brookwood pattern:
Quizzing the employees they said that the fabric was sourced from a fabric show and they'd used all of it up. They called it "watercolor camo" (not the first people to make that assertion) and were surprised it actually had a name and a history. They also said that the pattern had sold well in some of their other stores but rather slowly in the PDX location.
They also had a Swedish camo printed over with reflective German rain pattern, but I didn't get a picture. Fabric shenanigans are rampant over at Chrome apparently.