Due to labs outage, the Android alpha build has not been run since Wednesday.If you want to grab the latest and greatest newly merged alpha apk then you can do so from Gerrit > Jenkins. Since the apk built there do use the same signing certificate yet, you would have to uninstall the old alpha apk.
Here is a direct link to the alpha apk that's merged right now:
If you want the very latest you can follow these steps instead:
3. On the Jenkins page that shows the Console output Click on the Status link.
4. On the build status page download the file linked as wikipedia-alpha-debug.apk.
Sorry for the inconvenience. I plan to respond to this thread when the regular alpha builds are working again.
Bernd