http://news.cnet.com/8301-1035_3-57526994-94/android-users-outraged-over-motorolas-broken-promise/
Next phone I buy will be an HTC or a Samsung. I will never buy a Motorola phone again. I specifically bought this phone because it was on sale, it had basically the same specs as the samsung galaxy at the time and it was guaranteed to be upgraded to the latest android operating system.
I never got that upgraded operating system. Android 2.3 is so outdated, that numerous apps are not even available for it. I cannot even run Google Chrome.. wtf. No Vine, no Time Warner app, etc. Numerous basic features on all phones are not available to me because I bought this phone with the belief that I'd only use the old operating system for another month or so. I remember when my brother's Nexus got upgraded to android 4.1, he was talking about how it was like a brand new phone again.. I was looking forward to this upgrade for so long.. and then my hopes were crushed.
Say no to Motorola. Don't even bother buying their crap, because its completely unsupported.

Now that I have this new phone, I have no idea how to use it. Anyone have any tips or tricks or favorite apps for the s4 or even any phone that uses the newest android OS?

Here is a video of Samsung's flexible screen tech from 2 years ago. Samsung, Sony and LG will all have flexible screens soon. This video was made before LG's flexible battery tech. Because there were no flexible batteries, there had to be a solid piece of the phone. Now the entire thing can be potentially flexible.
 

 
With how thin the screens can be, it might only be a matter of time before we have tablets that are the size of a standard 12 inch ruler that have screens that can be pulled / rolled out into full size.
 
Source:  Dailymail
 
 
The next interesting part is gesture control. All hands free control using ultrasound.
 
 

 
Combine these two techs and we'll have the next gen cell phones, tablets, laptops, TVs of the future.
 
Source: Bitrebels
 
 
The flexible screen tech got me thinking.. they could make clothing out of those screens. Imagine a camouflage suit made out of this display technology. With the proper use of numerous mini cameras the screens could display your surroundings all over the suit and blend you completely into any location.
 
Also, with screens that thin.. once they make them bigger and higher resolution, future TVs could be sold rolled up. Apply some double sided tape to your wall, unroll the tv and stick the screen in place. And with gesture control, we wouldn't need a camera built into the TV for smart app features.

http://www.kickstarter.com/projects/968523355/micro-phone-lens-cell-phone-based-microscope
 
Wow. Now that is a simple idea. Its basically a sticker/lense that attaches to your camera on your phone. Way beyond macro pictures.. I can imagine some amazing shots being taken with this.