Standards Differ on Cell Phone Etiquette says Sue Doyle at the San Bernardino Sun. She goes through the usual litany of bad behaviour by cell phone owners, including people who take calls while on dates. One interesting observation from psychologist Gloria Morrow: "…not all fault lies with the cell phone owner. There needs to be some restraint from people calling on cell phones too".
Of course, this cries out for a me-centric technology solution. Phones should know who the important callers are, and help you manage the others.