Hojoki
https://play.google.com/store/apps/details?id=com.hojoki.mobile.android
https://play.google.com/store/apps/details?id=com.hojoki.mobile.android
Pitch: Make all your cloud apps work as one. Get push notifications and discuss your work as it happens. Works with Google Drive & Calendar, Dropbox, Evernote and 20+ other productivity apps.