You might of heard of this new thing called Google+. Well Google developed an Android application to compliment their new project.
Currently the app is not optimized for tablets, but it works just fine. It will let you catch up on your feed to see what your friends have been up to.
Also, you can instant message with a group of friends using a service called Huddle.
There is an optional feature in the app that automatically uploads any photo you take to Google+. It does not publish it, but will give you the option to publish it later when you are on your computer.