Time for the obvious statement of the day: technology is difficult to keep up with because it changes so much. Let's take an iPod for example: I bought my most recent player three years ago, and while it continues to faithfully entertain me with tunes, it has become outrageously outdated by newer iPods. New models can both record and play videos, connect to WiFi and even pick up a radio signal. The most impressive feature on my device is Solitaire, which is more embarrassing than impressive. Writing about technology can be especially challenging, given the...