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.
Why do you say that? Unless they completely rewrite the app from scratch it is not even possible to have a closed-source version of the app. That's what the GPLv3 does.
