Simple Mobile apps have been very popular among FOSS enthusiasts. I've personally been using the Gallery, Contacts and the Phone app since a few years now. It's a shame that it has come to this, will be on the lookout for their forks.
his last comment before closing the thread suggests that "99%" of the code is controlled by him and other paid contributors. still seems like you'd have to manually contact the last 1% to relicense their code.