Additionally, Taco Bell has found great success over the past year with new menu items, highlighted by its incredibly successful Doritos Locos Tacos and its new, higher-end Cantina Bell menu.

FORBES: Hold The Guacamole, Einhorn's Shorting Chipotle

The results, plotted as a graph, are a standard bell-shape: a few poor results at one end, a few excellent ones at the other and a bulge of average scores in the middle.

ECONOMIST: Can the spirit of enterprise be taught?

Regardless of whether you're loyal to Ma Bell or the Now Network, you can expect the same high-end design and fast performance, though battery life seems to vary modestly depending on the carrier.

ENGADGET: HTC One for AT&T and Sprint: what's different? Mobile

Taco Bell Grille was an experimental restaurant the company opened in Garden Grove, California to test higher-end menu items, such as smoothies.

FORBES: Companies & Strategies