Out went CABA and its case. If the New Mexico program developers wanted to chase Mustang, they would have to do it in California. CABA didn't want to mess around with California, with its awful freeways and hordes of people. Instead, the New Mexico firm took its case up on appeal. CABA insisted that, the trial judge's opinion notwithstanding, New Mexico's courts had personal jurisdiction over Mustang.
Personal jurisdiction causes lots of problems and many appellate decisions.
Such jurisdiction allows courts to make people and companies pay damages. Territorial jurisdiction differs. A state has sovereign power only within its borders, so if New Mexico, for example, wants somebody in Texas, the State of Texas must agree. A probate court has jurisdiction to hear cases involving wills and estates. It lacks subject-matter jurisdiction to hear contract or criminal cases.