AzBat said:
Who says the memory card has a proprietary connector? It could be USB, SD, Compact Flash, etc. The shape of the slot could possibly keep current and/or standard memory cards or drives from being used.
Which defeats the point of MS using an existing format. If they won't allow cross-appliance uses for the XB360 memory cards, whether due to connectors, formats or just size of the casing, it boils down to the same thing - providing a proprietary format to maximise returns on consumables.