Capcom's Resident Evil 5 will be one of the first games to take advantage of the PlayStation Move when the peripheral is released later this year. But only if you have the more recent Gold Edition - the Move won't work on regular copies of the game.
Why is that, exactly? Move functionality is being implemented to Resident Evil 5: Gold Edition
by way of a downloadable patch, see. According to Capcom, PlayStation Move controls require a memory resource - which isn't available in the original version of Resident Evil 5
The publisher explained that when work was completed on the original, the team didn't know about Move and instead used up the memory resource for another feature. However, the team was aware of the Move when Gold Edition
was in development, allowing them to make some space for adding controls at a later date.
So now you know why. Does it make you feel any better about it, though?