I don't have an iPhone yet as I'm waiting for my current cell phone contract to expire next month. I plan to buy an iPhone then. I have an iMac, iPod Touch, and an iPad 2, so I'm familiar with a lot of the basics. I understand the basic iPhone improvements that were announced yesterday. But, I'm confused as to the significance of the "S" in "4S". Does the "S" have a meaning? Or is it kind of Apple "code" that really means the 4S is like a 4 1/2; more features than the 4 but not enough new features to start a new generation, the 5. I'm curious since I was planning to get my first iPhone next month. But since I'm a bit confused as to what "4S" means, I'm wondering if I should wait until the 5 is announced &amp; available. Thanks.