Lines 388-391 of the new are redundant with the OpenSocial API, section 5.3.12.2.14 newUpdatePersonAppDataRequest. Repetition means we need to maintain the values globally when we update the specs. This is also mentioned in the osapi.appdata section of the patch.
Suggestion: Remove the edits about 10 KB globally. Add a sentence to 3. Compliance, stating that the container SHOULD provide 10 KB for AppData.
REST-API: XSD is missing a modification to support AppData as an additional element in Person.