I have quite a number of apps installed on my 32gb 3gs, about 156 and they take up about 4.31 gb of memory with music taking up 4.77 gb, however the "other" category takes up 8.31 gb of memory. Essentially i only have about 11.63 gbs of memory free. Where is this "other" coming from and is it strange that the "other" is almost double the size of total size of the apps? Do i need to be worried?