depending on the holster i would think. if its like a pouch style holster that depends more on size than actual form. you should be fine. because the storm and tour appear to be about the same size (did a size comparison using a stores dummy tour)
for a clip in holster (seidio) you may need to get a holster designed for the tour
if u look at the size on the pre order page there basically the same size, the charger im talking about is the desktop that u drop it into sideways
yes they are the same size, give or take, but there are different curves on the tour that MAY prevent it from fitting. your best bet would be wait till you get the tour before you order accessories.
Also does someone know the max supported capacity for an external card is on the tour?
im getting it as replacement but have all the storm accessories is why i ask
The Tour will most likely not fit because the bottom of it is rounded where-as the bottom of the Storm is straight. Either way, you'll be able to find out for yourself since the cradle for the Tour is not out yet.