Stack Remote for Google Android
Stack Remote is a dedicated Android app for the Stack Exchange sites like Stack Overflow, Server fault, Gaming, User Experience, Super User, etc.
This App has a current user rating of 3.7 stars.
The app uses the read-only API provided by Stack Exchange to browse view questions and answers on any of the sites from Stack Exchange. Users can also follow tags from particular sites and get notified when a new questions is posted on a followed tag. Users have the option to authenticate their accounts and check for inbox messages.
Since this is a read-only app, you always have the option to go to the website link, where you can post questions, answers or comments.
The app is available from Google Play (aka 'old' marketplace)