This is a present for my boyfriend and I don't know anything about PDA's and need some advice please. It has come with - Bluetooth and infrared connectivity 3.5 inch VGA touch display Intel® XScaleTM PXA270 416MHz processor .Windows Mobile 5 operating system charging dock & carrycase. Will I need a memory card and what sort will I need? It has an empty space at the top of it which looks like a memorycard would go, also how does the wi-fi work, do you have to download anything or pay anything extra to have that facility? Thanks and sorry for my ignorance!!