How do I find a list of the friends who share their google latitude location with me?

I'm busy writin开发者_StackOverflowg an application to run on an android device. How can I get a list of friends that have shared their google latitude location information with me?

I have found an example using the public location badge, but this means that the friend has to make their location visible to everyone, and I don't want them to have to do this. Is there any other solution?

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There's a REST API available at http://code.google.com/apis/latitude

Here's some sample code from Google, using with their Google APIs java wrapper: http://samples.google-api-java-client.googlecode.com/hg/latitude-json-oauth-sample/instructions.html?r=default

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I found this link which is the feature request for being able to see the location of friends without having to use their public badge. And this is the link for why it's a 'wont fix'.