Today, I have unpublished dAmnMessenger from Google Play. Over the past month, deviantART had upped their server version and unfortunately that small change has broken dAmnMessenger.
As time goes on, I plan on focusing on other projects, which sadly no longer are associated with deviantART. Sorry for this bad news, but unfortunately my codebase is too out of date to get to compile. Maybe one day I can bring it back.
If you have an iDevice, check out Pickley's iOS app: dAmnMobile 3.