Abstract: A method and system for enabling cross-platform connectivity and operable communication between two portable communication devices, operating through different operating systems, operably connects the two devices to a service infrastructure through a network. A unique identifier of the first device is retrieved and communicated to the service. Bluetooth or WLAN operation of the two devices is enabled. The second device detects any other device in proximity, within the network, and delivers identifying information of the detected devices to the service. If the identifying information corresponds to the identifier of the first device registered with the service, the service sends a push notification message to a push notification service corresponding to the first device. The push notification service sends an alert to the first device notifying the first device that it has been detected. Connectivity and operable communication between the two devices is enabled.