The main difference being that the more traditional model, featuring pro-rata allocation and collection of payment for order flow, is more geared towards one facet of the investing community, comprised in large part by retail investors who are using options limit orders and other very simple strategies.

FORBES: Examining The Options Flash

Through a casting company, they found a high-school model and an New York University student to play the main characters in photos and videos.

WSJ: Enhanced E-Books: Blowing Up the Book

Civil servants construct their own financial model when preparing to award long-term contracts such as the West Coast Main Line franchise.

BBC: West Coast Main Line: Taxpayers 'at risk' in rail bid

And that stands in contrast with the other candidate who has said he would veto the DREAM Act, that he is uncertain about what his plan for immigration reform would be, and who considers the Arizona law a model for the nation and has suggested that the main solution for immigration is self-deportation.

WHITEHOUSE: The White House

However, for those who use their iPads as their main e-readers, and those who use it frequently while away from Wi-Fi coverage, this new model could make a big difference.

WSJ: The New iPad Review: Faster, Sharper and Thicker | Walt Mossberg