I'm going to go against the grain and say I'm not so sure a 16 GB would be fine for the OP judging by the very little info he gave us. Having a Palm Pre really doesn't say how much he'll use the iPhone cause he could find that the iPhone is a lot more useful for different things he never really used the Pre for (different enough devices that I don't think he can necessarily base what he's going to use on that).
OP...
1. Would you like your phone to have your music on it? Even if you have an ipod, it could be nice just to have your music with you just in case (or if you want to use your phone as an alarm to have the music to wake up to with some 3rd party apps, or go to sleep to cause it does have a sleep ipod timer, or use to listen to as you use other functions on it for car use (for example if I plug my iphone into my car's speakers to take advantage of voice turn by turn instructions I have to use it for music if I want music as well).
If any of that sounds enticing, you might want to consider how large your mp3 collection is.
2. Do you plan on using the GPS as a GPS? Does it sound nice to have it in case you need directions (I will tell you I find it highly useful to have a GPS with me w/out having to purposely bring one but just have it on you)? If so, you may want to consider one of the apps that includes the maps (not just uses maps on the internet) for when you don't have cellphone coverage.
If that sounds good to you, I'll warn you those apps that come with the maps are quite large (I have Navigon and it's almost 2 GBs by itself).
3. Does gaming at all or treating your iphone like a "gameboy" at all sound like something you do? Game apps can really eat up storage space (a lot of the ones with nice graphics can be 500 MBs or more. Even a lot of 250 MBs one can quicky eat up space).
4. Apps themselves, even ones that aren't as big as games, can really add up. If you like the idea of always having an app functionality on your phone just in case (me) , you will find they take up space. If you are pretty good about going, don't use that app, get it off my phone (like my roommate who is boggled at how filled up my 32 GB is), you might do well with a 16 GB
Anyways, those are the four big things that I can see that would eat up space that some one might discover their iphone is really good for that has never had one before. I'm sure there are other things but those are what are in my experience the big eaters of space on my iPhone (I have a 32 GB 4 with 5GBs left. ANd honestly, my music collection is only 5.6 GBs of that).
OP...
1. Would you like your phone to have your music on it? Even if you have an ipod, it could be nice just to have your music with you just in case (or if you want to use your phone as an alarm to have the music to wake up to with some 3rd party apps, or go to sleep to cause it does have a sleep ipod timer, or use to listen to as you use other functions on it for car use (for example if I plug my iphone into my car's speakers to take advantage of voice turn by turn instructions I have to use it for music if I want music as well).
If any of that sounds enticing, you might want to consider how large your mp3 collection is.
2. Do you plan on using the GPS as a GPS? Does it sound nice to have it in case you need directions (I will tell you I find it highly useful to have a GPS with me w/out having to purposely bring one but just have it on you)? If so, you may want to consider one of the apps that includes the maps (not just uses maps on the internet) for when you don't have cellphone coverage.
If that sounds good to you, I'll warn you those apps that come with the maps are quite large (I have Navigon and it's almost 2 GBs by itself).
3. Does gaming at all or treating your iphone like a "gameboy" at all sound like something you do? Game apps can really eat up storage space (a lot of the ones with nice graphics can be 500 MBs or more. Even a lot of 250 MBs one can quicky eat up space).
4. Apps themselves, even ones that aren't as big as games, can really add up. If you like the idea of always having an app functionality on your phone just in case (me) , you will find they take up space. If you are pretty good about going, don't use that app, get it off my phone (like my roommate who is boggled at how filled up my 32 GB is), you might do well with a 16 GB
Anyways, those are the four big things that I can see that would eat up space that some one might discover their iphone is really good for that has never had one before. I'm sure there are other things but those are what are in my experience the big eaters of space on my iPhone (I have a 32 GB 4 with 5GBs left. ANd honestly, my music collection is only 5.6 GBs of that).