 It can also provide Bluetooth connectivity that helps mobile devices to connect to external devices without wires. Accessories are optional devices that can be connected to wireless phones to increase their functional- ity. Accessory tools include hands free car kits (including a microphone and speaker), external memory cards, data transfer adapters, voice activation tools, battery chargers, and SO on [1]. Smart Wireless Devices 10.6.1 Advancements in UI Flash Lite of Adobe Systems, Inc. and uiOne of Qualcomm are the two key advanced display technologies. Flash Lite, a software application, can be used for viewing entertainment contents such as Flash games and Flash animation and it is implemented at the client-side, or user interface layer. Adobe Systems, Inc. has released three different Flash versions for mobile devices. Flash Lite 3.1 technology is used in numerous devices as a web browser plug-in, a runtime engine powering the user interface of a device, or a standalone runtime for playing popular content such as games [22-24]. Qualcomm's uiOne enables users to access previously viewed Internet pages easily. Qualcomm's uiOne has a technology called InfoCast which shows news or weather on the idle screen like Widget of Windows Vista. Qualcomm uiOneTM Handset Development Kit (HDK) is an integrated package of application and user interface (software solution) optimized to run on Qualcomm's Mobile Station Modem TM (MSMT) chipsets. The uiOne HDK provides manufacturers with a framework for the integration of third-party engines and a reference user interface ready to be customized to meet internal UI requirements as well as those specified by operators [24]. The key weakness of the existing solutions is that users cannot exceed the functionality that each user interface system provides. The downloadable UI can overcome this key disadvantage via multiple UI Engines which support different types of user interface. A downloadable user interface was developed by Electronics and Telecommunications Research Institute (