Motorola first-generation cell phone (brick-size flip phone)

$3,000 brick-size flip phone with poor reception; ties GaAs frequency capability to modern cell phones and GPS.

A few years after that, Motorola came out with something called a cell phone. Anybody know how big the original cell phones were? About the size of a brick. They didn't weigh quite as much as a brick but close to it. They were flip phones, and they had terrible reception. My first flip phone cost me $3,000, and it filled up my pocket. If I walked across campus, half the way across campus it wouldn't work because the cell phone reception was lousy and the power was — anyway, gallium arsenide got better, cell phones got better, and somewhere along the way, because of the frequency the gallium arsenide can work at, you can use GPS. That's why GPS works on the phones. You can't make a cell phone with silicon, it doesn't work, you need the frequency for GPS and cell phones.