The iPhone is like the ultimate cell phone because it’s basically a mini-computer, too. You can go to the iTunes App Store and download thousands of games and applications for a very small fee or even for free, and it features all kinds of GPS and Internet-based applications that make it useful for a variety of situations. It’s the perfect companion for a road trip because it can replace the need to bring a laptop or GPS, and is great for also playing music and movies.
With its touch screen interface, you can quickly switch between email and internet applications, send text messages, play games, and more. The screen is bigger than the average Blackberry keypad, so it's actually pretty easy to enter information into the device. Apple also built in motion-sensing technology that lets you change from portrait to landscape view by simply tilting the device, plus it works well with a lot of games.
Right now, the biggest downside to the iPhone is that you have to get your cellular service through AT&T. Depending on where you live, this can be an issue when it comes to coverage. I know that where I live, AT&T service isn’t so great in many areas. Friends have come to my house with iPhones and been unable to get a signal at all, whereas my current provider (Cellular South) works perfectly for my Blackberry. This means that if you go outside of an AT&T service area and lose the signal, all that GPS and internet functionality will be disabled until you get a connection. For that reason, you see more people in my area with Blackberries than you do iPhones.
The Apple iPhone 3GS is available in 8, 16, and 32 GB models.