It has been a long time since the Giants and Jets have worked together on anything. The last time was probably when the stadium was built(pictured).
According to a report in the Ledger, the Giants and the Jets are banding together for a lawsuit to stop the construction of the American Dream retail and entertainment complex. The lawsuit alleges that the developer did not obtain consent to increase the size of the complext, which according to the teams, a 2006 agreement says that any change to affect game days requires consent.
Good to see the teams working together, although it would be nice if they can coexist together. Oh well.