Somewhat overlooked in last week's iPhone 4 pandemonium is the updated operating system for iPhones called "iOS 4". It's available as a free download for existing iPhone and iPod Touch users. (Sorry, it is not available yet for the iPad.) I put it onto my iPhone 3GS and it's working fine.
Here's what you'll get when you install iOS 4 onto your existing iPhone: (note: iPhone 4 owners can skip this-- the iPhone 4 comes with iOS pre-installed.)
- Multitasking: in effect, it lets you suspend an app, and come back to it later, just as you left it-- saving you the time it takes to launch it and get to where you were.
- Folders: you can group apps into folders now. Each folder can hold 12 items. I have two and a half pages of folders, grouped just the way I like them (Navigation, Utilities, Reference, Shopping, Sports, etc.)
- Improved Mail: you can see all of your Inboxes at once.
- Digital Zoom for the camera: like the one in Gorillacam, but now built-in.
- iBooks: you can now buy books from Apple's store, and read them on your iPhone or on your iPad. Note: free Winnie the Pooh book is included and the books have the same groovy page-turning animations as on the iPad.
It took about an hour for me to do the update on my iPhone 3GS and I would expect it to take about the same for you. If you have an original iPhone (aluminum back), you're out of luck-- it won't install at all, so don't try. If you have a 3GS it's a no-brainer-- go get it, it's free.
Here's a link to Apple's site where you can learn more about the iOS 4. Here's a link showing how to install it.