The Twitter Kit for Android, supported by Twitter as part of the Fabric developer suite, helps developers create Android applications that integrate various Twitter functionalities. The SDK can be used to implement easy Twitter login, composing tweets, displaying tweets, and authentication all from a 3rd party application. The Twitter Kit includes "TwitterCore" for standard login, "TweetUi," for displaying a user's Twitter stream, "TweetComposer," for composing and posting new tweets, and "Digits," a new way that users can verify with Twitter via their mobile phone number over SMS-based authentication.
With the holiday weekend coming up in the U.S., avid divers may be making their way to their favorite spots. Dive.io is a web service designed for divers, so they can log their dives, share their favorite dive spots, and meet fellow divers. It's very specific, but it does its task quite well. It also has a nice API, allowing for integration of the service into, well, anything at all.
As Facebook is one of the major players and MessageMe is a new kid on the block, you would expect that the latter would be intimidated, if not crushed, by any direct attack from the social giant. In this case, it doesn't seem to be so. Despite Facebook recently cutting off MessageMe's access to the Facebook Friend Graph, the newcomer has since grown in popularity and managed to raise $1.9 million.