You don't have to run out and get one of the new iPhones to feel as if you have a new device.
The new iOS update to 7.0 is more than a few simple patches. It's such an overhaul your phone really will feel different and you will have to re-learn how to do a thing or two. Aside from the cleaner, more colorful, more modern look, there are lots of new ways to perform certain functions.
The first one that's helpful to know: Swipe down from the home screen and there's your bar for searching your phone. Swipe up from the bottom and you have one-touch access to your so-called Control Center, lots of the stuff you previously had to hunt around for a bit: airplane mode, wifi, bluetooth, airplay. There's also camera, a flashlight, a level, and your calculator. For multitasking or to see which apps are open, just like you used to double click the home button. Only instead of app icons at the bottom, you can flip through screen shots kind of like you do with music in iTunes. The ones you want to close, just toss up off the screen. And speaking of those apps, you can also configure them to update automatically, no more having to go to the App Store everyday and update an app or two. In camera mode just swipe left or right to get to different modes: still camera, video camera, panorama. You also get a handful of new photo filters. Just hit the filter button on the bottom. Once you have your photos, rather than all being lumped together, now they get the same treatment they would in iPhoto on a computer, arranged together by location or date. And Siri also gets a bit of a makeover, or rather a voice-over. You can change it to a male voice.
Siri can assist you with more now from Tweets, to getting your voicemail, to toggling on and off your Wifi. iOS 7 is a free download for all iPhone 4's and up, iPad 2 and up and 5th generation iPod touch. There are already one or two security glitches being reported so you may want to wait for the fix or at the very least keep your eye out for when the patch is available.