You didn't reveal your costs for such but 2 services for phone and internet might cost less than a SMART PHONE with tethering with it's DATA PLAN. You are right a SMART PHONE can do this but a regular phone can't.
Be a BEAN COUNTER and ask for the numbers.
I am currently using two seperate Alltel services: A wireless internet connector for my laptop (one bill), and a cell phone plan(second bill). Is there anyway of combining the two seperate services into one? I saw Sprint has a "mobile hotspot" feature on its cell phone service plan, can I connect my wireless laptop to this?