We have successfully developed a custom application for exclusive use on our web site for the sale and distribution of games, themes, applications, etc. for the Blackberry Smartphone. 

Some of the application highlights:

• Handles purchase and distribution of files via OTA (over-the-air)
• After successful sale, sets up a temporary space for the multiple files to reside for distribution
• Access is limited to the files by unique IP numbers and time before temporary space is cleared

Here is a link to read more or even give our demo a try.  www.mobimadness.com/paypal