When myvu first announced and showed Crystal 701 ($300), its deluxe 640x480 wearable video display system for iPods, we were somewhat concerned: while the company had used unusually smooth curves and aggressive size reduction techniques to fit high-tech components in a small goggle-esque shell, a combination of black and yellow coloration made it hard for us to imagine anyone wearing the system. So we were really relieved when our review unit arrived…