In our review today we came up with the following points and resolution proposals (copied from the chat):

Review document can be found at https://www.oasis-open.org/committees/download.php/48589/odata-json-format-v4.0-wd01-2013-03-19.doc
SDx, HHx and so on are references to comments in this document

JSON 1 introduction
HH2: accepted
SD3: accepted - rephrase sentence
SD4: accepted
3 Requesting the JSON Format
Hubert: open ticket to make json constant case-insensitive
Ralf: sync with Protocol spec and clearly state that mime types are allowed in $format
SD6: no action
SD7: no action
SD8: state that odata.metadata=minimal MAY be explicitly requested
SD11: accepted - make clear that structure is similar, not necessarily the content
HH13: Ralf to check with Mike whether last bullet point on navigation properties is necessary
HH14: accepted
SD15: accepted
SD16: accepted
SD18: no action
HH19: state use cases here
HH21: correct example URLs and remove $links
HH21: Hubert will open a ticket regarding the template
SD20: correct here, no action
SD22: no action