We have put an updated version of the Android Matrix Console app (v0.5.3) on the Play store!
This release mainly includes performance improvements, such as using the new "V2" sync API, and other optimisations which should make your user experience a lot nicer. There's also a few new features in the SDK (e.g. tags support) - these will be added to the app hopefully soon.
Get it from the Google play store!