A mobile handheld wireless communication device has a storage memory resource management function operative in a processor and a memory of the device. The resource management function manages storage memory resources in the device by dynamically determining a storage level of content in storage memory of the device and pushing content exceeding a storage threshold A to a nearest wireless accessible server, and pulling content from the server below a storage threshold B, thereby minimize the size of storage in the device and thus minimize size and weight of the device in user hands.