Smartphones are spreading faster than any other technology. Ever.

Here are some interesting facts:

• Landline phones reached saturation in the US in 80 years.
• Desktop computers reached saturation in 35 years.
• Mobile phones reached saturation in just 20 years. 
• Smart phones will reach saturation in about 10 years.
• Tablets will reach saturation in less than 10 years.

'Saturation' is the point at which demand begins to diminish.

Now here's the thing to remember -- we're just five years into the smartphone market -- we still have five years to go before saturation. The smartphone market began in earnest in 2007 when the iPhone was introduced.

Click here to read Michael Degusta's article from MIT's Technology Review.