Last month I posted a blog referring to an article Visa's Bill Gajda wrote regarding the challenges facing mobile payments.
Well Visa has now released their Best Practices for Mobile Payment Acceptance Practices in which they outline key best practices for mobile acceptance that merchants, software developers and
device manufacturers who are using mobile devices should follow. You can read more about the best practices in the press release, which also includes an abbreviated version of the best practices.
If you're currently developing for mobile devices, or have been considering moving into that arena, I encourage you to read through the complete guidelines found here and at http://www.visa.com/cisp, which also includes many valuable resources about PCI DSS compliance and security in general.