Sorry op but it's not going to happen. If apple is going to offer 64gb it'll be in the iPhone 5. Now stop bitching and sync less over if you want space. No one consumes 32gb of music videos and apps in 24-48 hours till the next time you could sync.
If you organise your iTunes library then syncing new content takes no time at all
It's not a matter of consuming that much media or needing that many apps. It's about having that particular song/picture/video or app you want right then, and that can't be predicted. I have to manually sync my music and have left almost half of my music library off my 32GB iPhone because I just don't have room for it, so when I'm talking to someone about a random song or suddenly get one stuck in my head and want to listen to it, there's a fairly decent chance that I don't have it with me because I either didn't have room and left it off when I initially loaded my iPhone, or I didn't notice that it was part of my library and failed to manually transfer it to my iPhone when I ripped it.
Same thing with pictures -- I have maybe 1/20th of my iPhoto library on my iPhone because I just don't have room for it, and I've had to pare down my apps significantly (and reduce the amount of space they use, like I don't allow Slacker to cache stations despite my desire to thanks to bad network performance) for the same reason.
And given that the iTunes Store is trying to get people to pay for movies, which I'm sure Apple at least partially hopes people take with them on their iPhones and other devices, storage space is key to allow people to buy movies/TV shows and sync them to their iPhones. My mother-in-law routinely buys movies and TV shows to bring with her on long plane flights -- but I can't because each movie takes up over a gig of space that I can't spare. For all of these reasons, I was one of the people hoping for a 64GB iPhone 4, and because Apple isn't offering one, I will not be upgrading... but that doesn't mean that I can't complain about it.
Look, I'm not saying that your way of allocating your allotted iPhone storage space is wrong. I'm just saying that to tell someone else that theirs is wrong is not cool, since not everyone uses media the same way you do. That would be like me telling you that because I don't watch sports, I shouldn't have to pay for a cable lineup that features 18 different ESPN and Fox Sports channels so the cable company should just air 2 of them and everyone else should **** and stop complaining because that should be enough.