A system for capturing and delivering location-based information and services captures wireless landmark information sent by mobile devices to build a map of locations based on the relationship between wireless landmarks that are visible to the mobile device at the same time. The audio material is illustratively downloaded from a network, or from a storage media, each coupled to a loudspeaker through a speaker drive unit. When a new message is detected belonging to one of the message threads, if the message has a persistent status it is added to the message thread and the collating message thread attribute for that thread is updated. , a cold patch material which is free of added liquid petroleum. The target device may provide debugging information to a computer during execution of the statechart. Electronic components are disclosed and claimed independent of any method of manufacture.