As it is layed out clearly in the documentation the function Photo:withSettingsForPluginDo has been deprecated since LR2 and will not be into LR3. I'm thinking of a way to make my code more compatible with LR2 by using an other solution for this function, but so far I've come up empty.
Even the sample code with the SDK (flickr plugin) still uses this function. Any thoughts on how to replace this deprecated function?
See the section titled "Adding Custom Metadata" starting on page 54 of the LR SDK guide.