This is an iPhone ready version of: http://oauth.googlecode.com/svn/code/obj-c/OAuthConsumer/ "iPhone ready" simply means you just need to add the files to Xcode, and import "OAuthConsumer.h". If you're rolling with the iPhone: 1) Be sure to add Security.framework. 2) Include libxml2.dylib in your frameworks. You also need to add a build property to the project -- "header search paths" needs to include "$SDKROOT/usr/include/libxml2" with "Recursive" checked. Be sure to include sys/types.h. Questions? E-mail me. jonathan at my initials (jdg) dot net.