I don’t recall my friends really having smart phones in 2009. Feature phones seemed to be the thing. When I bought my first iPhone, the 3GS, in September 2009, none of my friends had a smartphone, let alone an iPhone. Now, however, the majority of my friends are iPhone users, either of the 4 or 4S, with a few Android users on the platform because of the entry price. Even so, some of my iPhone using friends were on Android before because of the price. They were happy with their phones, but upon transferring to an iPhone, they instantly felt their Android devices were vastly inferior. I don’t see many of them going back anytime soon.
For keeping on top of my Mac and tweaking some things, I like iStats Menu, Geektool, and CleanMyMac. Coda is good for coding, Clear and Reminders both work well for check lists, Scrivener for serious writing, and Tweetbot for Twitter usage.
I don’t see Siri usage dropped drastically. I know, based on how I use Siri, that Google Now will not impact it much. I use Siri for integrated functions, such as reminders, texts, or activating timers and alarms. Google Now will supplement Siri for me.
Some rumors were saying the cheaper iPhone would have a plastic backing, 3.5" screen, and some other older specs. Perhaps we’re just looking at a slightly updated iPhone 3G/3GS design with some improved specs? I don’t see why they can’t use the original iPhone screen resolution, either, as they’re still developing that pixel density for the iPad Mini. The process would be one that has been done before and the cost to them should be less than producing newer phones, thus allowing for a cheaper phone to be released.
Honestly, I still enjoy the look and feel of the 3GS at times. Updating its specs a bit could bring it closer to some more modern phones while keeping the cost below new iPhone prices.