Damn, that shit is TINY! But I noticed something about it, and as such had to verify it. The Raspberry Pi Zero (aka R-Pi:0) is half the size of the Model A+ if you were to cut the Model A+ in half along the short side. But one thing I noticed is that to make it this small, they had to remove the Camera and LCD Ports off it.
 

Raspberry Pi Zero
 

Raspberry Pi Model A+
 
But its price is only $5! And it comes with the following:

• 1GHz ARM11 core (40% faster than Raspberry Pi 1)
  
• 512MB of DRAM
  
• A micro-SD card slot
  
• A mini-HDMI socket for video
  
• Micro-USB sockets for data and power
  
• An unpopulated 40-pin GPIO header - Identical pinout to Model A+/B+/2B
  
• An unpopulated composite video header
  
• Smallest ever form factor, at 65mm x 30mm x 5mm
  

 
 
First the Negatives:

• Use of micro ports means one has to get adapter cables for it. Unfortunately this raises the $5 price.
  
• If you need Composite video or access to the GPIO, you need to add the headers, which also adds to the $5 price.
  
• It is still a Model A/A+ - with just 1 USB port and no Ethernet port.
  

 
But as is it is a viable computer like the Model A/A+.
 
Now the positives:

• Faster CPU
  
• Double the RAM of the Model A/A+
  
• Smallest board made (thus far)
  
• $5 price
  

 
Unfortunately, I forgot to get a Mini HDMI to HDMI converter so I can not use it right now. But I will post up the reviews when I get it running.