[iMore.com]

We use Facebook and Twitter for more than just talking with our virtual social communities these days. We use them to login to other sites, to comment, to register — to host our digital identity. That's why it's a good idea to check and control which iPhone and iPad apps have access to your Facebook and Twitter accounts. The best part is you don't even have to log in to Facebook or Twitter on the web. You can do it right from your iPhone or iPad!

Full story from the iMore Blog...