Pingdroid is advertised as an app that lets you simultaneously post text and photos to multiple social networks, using the Ping.fm service. With Ping.fm, you can post to more than 40 social networks, including Facebook profiles and Pages, FriendFeed, LinkedIn, MySpace, Posterous, Twitter and Yammer.
Unfortunately, in my tests Pingdroid succeeded only in posting Twitter-style short text updates. Posts with photo attachments failed every time, even though the app showed a 'successful post' confirmation. The posts never reached Ping.fm.
I even tried changing the posting method (status update, microblog or blog), without success. User feedback on the developer's website suggests that other people have experienced the same problem.
AnyPost, another Ping.fm client app, works much better than Pingdroid for posting updates to multiple social networks. I recommend using it instead.