You have brought up a very good question. In a way it's like the question many people ask: what's the best cell phone for me? The answer: the one you choose. No one else can choose for you. It's up to you to decide what you want in features, functionality and the price you are willing to pay for those features.
I hear you say you already have a cool cell phone, that statement tells me that you are not unhappy with it, so why change? Then I hear you have a Video iPod, and no complaints so that tells me that you are enjoying it. So why change?
The only valid reason to buy an iPhone is if you want it. It's obviously a high end, luxury purchase as no one really "needs" and iPhone. We "need" food, water and shelter, however we do not "need" a fancy expensive device like the iPhone.
However many of us are going to buy one anyway. It's all about choices and what we want.
As far as convergence is concerned, that is not for everyone. It's simply one persons opinion. There is no argument that proves convergence is superior or more beneficial than separate devices. It's all a matter of priorities, values and what individuals want for themselves.
After all it's your choice, your money and your experience with whatever you decide on. Therefore speaking for myself, I don't care what anyone else thinks, I'm going to get one because I want one.
Just in case you didn't know what convergence is, it basically means that you will be using just one device instead of both. But otherwise, read Archer's post as he is spot on. Although the iPhone is a cool device, it is not for everyone. Make a good, educated choice by watching the keynote, reading more about it, and thinking about what you really want to do.
I sort of wish Apple would have called it something else because the iPhone. Yes, I'm sure it easier for marketing purpose but the comment I hear too much is, "That's too much for a phone!" Well, yes, if all you are going to do is use it to make and receive phone calls it is way too much but it's not just a phone. It's an extremely user friendly mobile computing device with a phone as a major function. As a photographer I'm looking forward to using it to share photos with friends, As a learner I look forward to listening to my podcasts, as a web developer and Internet user I look forward to developing and showing others how it can be used to more effectively retrieve information on the "road". However their is a case for having this and a separate iPod and the reason is if you are involved in any physical activity while listening it's better to have a smaller flash based model like the nano or shuffle. I would need some kind assurace or serious protection if I wanted to use the iPhone at the gym.
put them up on ebay! Think about how much you paid for each, and then check out the price of the new iPhone when it comes out. If the difference is significant -- that should make up your mind for you... and if there really is no difference -- put the old ones up on ebay. Although, if you are really happy with what you have, maybe you should wait and see how bad the bugs are at first in the iPhones, u know? I'm sure you'll know some people who ran out and bought one, see how it works for them
Supposedly my treo plays music...But I never listen to music on it cause I have an Ipod. I will probably only rarely listen to music on the iPhone and continue to use my ipod at the gym or on my bike. Of course there are times like on a train or a plane or in a waiting room that listening to tunes would be nice. and because i'll have a lot of them on hand i'll most likely use the iPhone for one or two songs or videos here and there.
I hope I'm never on the elliptical trainer messaging, listening to music and sweating my butt off at the same time...