I would like to use my laptop while on the road to connect to the web for homeschool purposes for my son. My kindle has 3g and I do not want to have to take out a subscription with ATT or Verizon to be able to use the laptop while away from my wifi at home. Is that possible?
Possible, but highly technical and not without risk of bricking your Kindle in the process, and not long after somebody figured out how to do it in the first place, Amazon applied a 50MB/month data cap to Kindle 3G service -- so even if you did jailbreak your Kindle and set up tethering, it still wouldn't be any real use. Your best option is probably to find a relatively inexpensive cellular plan that includes data and tethering.