Valuable locator or finder

All important items have RF id identifier.
Mobile Application has Home rooms map
One master device (or a chip present in mobile) will be present and that will communicate to mobile for the device positioning information.

xLocator for Mobile
Scenario:
We have 5 important things for day to day work.
1. Car Key.
2. Wallet
3. xFile
4. TV Remote
5. PDA/Music Player.
If we lost these items, in our home and not finding them when required.
Than we take advantage of xLocator Application that will give details of those items.