All right, let's take a look back in history to 46 years ago today and the introduction of the first Sony Walkman cassette player. Now, the legend goes that Sony co-founder Masuru Ibuka wanted to listen to his favorite opera music while on long flights and he asked one of his designers to take Sony's Pressman dictation recorder, which was favored by journalists at the time, and make it smaller. Now, in less than four months time, with no market testing, the D designers released the TPSL2 on July 1st, 1979 i ...