The Trends page highlights major market shifts in epayments. We are in the process of developing our own charting metrics to illustrate the shifts between different forms and methods of payment, primarily in the United States. In the meantime, here are links to trends stats.
Mobile Primer: What Does It All Mean? | 10 Feb 12 | BAI.org
The Future of Mobile Payments [INFOGRAPHIC] | 07 Jul 11 | Mashable.com