So far it’s been hard to find apps that work with Homeycomb 3.1 and the tablet OS so I’ve curated this list of ones that have worked with my Galaxy Tab 10.1
Friend Me for Facebook
This facebook app is built for the tablet OS and works well. The interface is clean and simple
Plume for Twitter
This app is a highly customizable twitter client with a newly release Honeycomb / Tablet interface.
Stay on top of trending Twitter feeds with this app!
This Google+ app is full of win. Keep on top of all your circles and access the features of Google+ (some only available to Android users!).
FriendCaster Tab for Facebook
Facebook app for your Tablet device. Also has a really neat widget!