1. A speed reference invocation method in a data processing system, said method comprising: receiving an invocable speed reference according to a situational location of a user of said data processing system; presenting information for said invocable speed reference to said user; and automatically invoking said speed reference upon selection for invocation by said user, wherein said invocable speed reference is a phone number and wherein said step of automatically invoking said speed reference upon selection for invocation by said user includes automatically making a call with said phone number upon selection for invocation by said user.