I know this is kind of a hard question to answer, but I'm brand-new to iPhones so I have no experience with it. For the last few years I've used Android, which means all my photos, videos, and music have been stored on an SD card, while my apps are stored on internal memory. So I've honestly never really paid much attention to the *total* amount of memory I actually use, and I'm not sure how much I need to get with the new iPhone. I've had my current phone for a year and right now I'm only using 3GB of my memory card and 339 MB internal memory. That's with a total of 1,889 photos, 15 videos, about 60 songs, and 32 apps (half of which I could easily delete). So it would seem that the 16GB should be enough, right? But I keep reading all these posts about the new iPhone camera producing higher quality photos, which in turn takes up more space. And knowing how much I take photos with my phone, I know I'll only take even more when I've got one with a really great camera on it. So I don't know how much more space I should reserve for possibly more, higher quality photos? I'm not really one to have a lot of video (the ones I have now are mostly only about a minute long) or any movies on my phone. Nor do I put a ton of music on it. My stuff would mostly be photos and probably around 15-20 apps. I know no one can tell me exactly how much memory I'll need but if anyone's ever had a 16GB iPhone and found it wasn't enough for them, maybe they could give me a rough estimate of how much they had on their phone? I don't want to end up with one that I'm constantly having to delete things off of, but I'd like to save that extra $100 if I don't need the next step up. Also - and this is probably a stupid question for various reasons - I'm wondering if we can expect the newer, longer phone to only be .5" longer? I know no one knows for sure at this point, and obviously it's going to have to be at least that much longer to accomodate the .5" longer screen, but should the rest of the proportions remain the same? I'm just not a big fan of really big phones and I'm trying to compare it to what I have now to figure out just how long this thing is going to be - especially after I put a case on it! I know I'll still get it, I'd just like to have an idea of how comfortable it will be for me to use. Thanks so much in advance!