This is my new touchscreen iPhone 5. To unlock the iPhone, simply walk along the bottom of the screen. 10 numbers will appear for the 4 digit combo lock. The current como is 4038, look at the end of this to change it. If you enter in the correct combo, the iPhone will unlock and there are 12 apps to choose from listed below from top left to bottom right on the iPhone:

Clock
Weather
Daytime
Blackjack
Doodle Jump/Parkour
Temple run
Word processor
Slot Machine
Music:
--------Dragon Born (by Gunnerfoe00, MC: mikemikew2)
--------The Entertainer (by Podcrash)
Messages
Phone
Reminders

To change the combo to the iPhone, go to the back of the phone. There are 10 rows of repeaters and in between those are 4 columns each with one torch on them. Each row corresponds to a number (0-9), indicated by signs on the front, and each column corresponds to a digit in the lock, first digit being to the left and the last digit being to the right in the picture (farthest towards the top in the actual iPhone). Simply move these torches using the signs to indicate which number you choose and which digit in the combo lock that it will be.

HOW IT WORKS:

The touchscreen feature is actually a "proximity" detector which is controlled by the testfor command in command blocks. Specifically the testfor[r=x] (where x is a constant radius) command, or testfor[x,y,z,r] (where x, y, and z are the coordinates, and r is the radius around those. While the actual detection area is a sphere, (x blocks in every direction from the specified area) the screen of the iPhone is placed in such a place where each block on the screen is the very top of one of those spheres making it so only that block is within the radius(the rest being unreachable beneath the screen). In order to make the command blocks test rapidly so the screen has a fast response time, every command block is hooked up to a 1 tick clock (a device that sends pulses every tick). When the command block test is true, the output travels through a comparator into whatever part of the iPhone is controlled by that part on the screen. That signal can also be sent up to power the redstone lamp that you stand on, as is shown when you slide across the bottom to unlock the iPhone.

If you have any questions as to how it works, please post them in the comments and I will answer them whenever I see them :).

Additional Notes

Please post any glitches you find in the comments and I will do my best to fix them.