This Sample have bellow function.

1. Have implemented authentication
     .twitter oauth 1.0 
     .facebook oauth 2.0
     .foursquare oauth 2.0
   in rhodes(3.3.3).
   
2. after sign in by facebook,twitter,foursquare.The code will 
   save the access token in local mobile phone database.

3. post status by access token which store in database.

4. it test successful in android 2.3.4

Note:
 .Facebook App's Mobile Web URL should be set to : "http://redirectme.to"

 .FourSquare App's Callback url should be set to :  "http://redirectme.to"

 .Facebook access token's expire date is 2 months.
  So before access token expire please request user relogin 
  the facebook in your mobile app and then can get a new long-lived(2 months)
  access token.

 .Twitter and foursquare access token don't expire.

 .In the code foursquare is add tip to this venue 
  https://foursquare.com/v/clinton-street-baking-co/40a55d80f964a52020f31ee3.