.:: A mobile phone for calling only Mom and Dad!

I think my parents are the only persons I don't need to call...they're always calling me!!
Anyway, a really cool invention: with so many students carrying mobiles, cell-phone rules are multiplying at schools, expecially in USA. They are trying to find different ways for turning off student's phones but the problem is not so easy as it seems...
So...why not a cell for just calling mam and dad?
Here we are: a cell phone for grandparents. Sooo funny!