In a wireless switching system in which base stations dynamically re-arrange logical coverage areas, when a base station enters a new logical coverage area, wireless handsets registered on the base station do not have to report individually this change in logical coverage areas to a wireless switching system controlling the wireless switching system. A mobile unit such as a smart phone is preferably equipped with a wireless local area network connection and a wireless wide area network connection. The remote databases can include, by example, a database of forms, a security database, and a directory database. The methods can include, for example, treating a biomass containing the PHA to form a pyrrolidone.