Abstract: Methods and systems are provided for mobile wireless transactions. The method comprises transmitting (105) a first signal having data indicating a first item, receiving (110) a second signal from a mobile wireless unit in response to the first signal when the mobile wireless unit is within a predetermined proximity to the first item, the second signal indicating a user of the mobile wireless unit seeks an option to purchase the first item, and reserving (115) the option to purchase the first item for a predetermined time period. The system comprises a transmitter (44) configured to transmit a first signal having data indicating a first item, a receiver (46) configured to receive a second signal transmitted by a mobile wireless unit (16) if the mobile wireless unit is within a predetermined proximity to the first item and a user of the mobile wireless unit seeks an option to purchase the first item, and a processor (42) configured to reserve the option to purchase for a predetermined time period.

Abstract: A method is provided for improved navigation guidance in a portable navigation device (104) having a first navigation operating mode (302) for requesting (318, 324) and receiving (326, 334) routelet data and navigation route data and operating in accordance with the routelet data (332) and a second operation navigation mode (304) for operating in accordance with the navigation route data (338). The method includes in the first navigation operating mode (302), the steps of transmitting a routelet request (318) comprising location data, speed data and direction data, the location, speed and direction data determined (312, 314 316) in response to a present location, a present speed and a present direction of travel, respectively, of the portable navigation device (104), receiving routelet data (326) and operating in accordance with the received routelet data (332).