Under the older America's Choice plans, logging in to the mobile web or get it now system consumed your minute allowance.  Under that older calling plan, picture and video messaging also used 1 minute of air time.  Under the Nationwide calling plans, mobile web/get it now no longer uses minutes, but is billed at $1.99 per Megabyte of data that is accessed, whereas picture and video messaging don't use minutes or megabytes, but are billed based on your text messaging plan.