The largest-capacity iPhone that Apple has ever released is a 32GB model, which is more than many folks would ever need. For those of us that need to carry a large music library at all times, though, that size can begin to feel a tad cramped after a while. Luckily, Apple may soon have an answer for the more storage-hungry among us. The folks at This is my next have been handed the memo you see above, which originated from third-party Verizon retailer Russell Cellular and clearly mentions a white iPhone 4 in both 32 and 64GB capacities.

This isn't the first time that news of a possible 64GB iPhone 4 has circulated, as a prototype version of just such a device was spotted in the wild back in early March. Of course, it's entirely possible that this could be a simple typo, especially considering how easy it would be to accidentally type "32 and 64" instead of "16 and 32." As This is my next points out, though, a 64GB iPhone could be a great way to stimulate iPhone sales during the summer since there's not going to be a new Apple handset until September or so. Would any of you pick up a 64GB iPhone 4 or would you rather wait to see what kind of smartphone Apple's got up its sleeve later this year?

UPDATE: Bummer. It seems that the folks from Russell Cellular have contacted This is my next and confirmed that the memo contained a typo and should've read "16 and 32g."

Via This is my next (1), (2)