Inventory system using tilemap

i was thinking in a more direct and simple approach to make menus and inventories

so i came up with the idea of using the tilemap object

is very early and have some issues but is a starting point

controls: drag and drop objects to the inventory

what you guys think?

<img src="https://dl.dropboxusercontent.com/u/119955512/Imagens/inventario.png" border="0">

Try it here

.capx download