so could i use my phone then as a broadband dongle by using the wi-fi which in turn would i be able to use my laptop then
I use an EzCast dongle in the back of my Tv.
I think the Google Chrome stick does the same.
My phone screen appears on the TV.
Ok you might look at bit odd going out carrying a TV, but maybe at home this would help.
It will also mirror your phone screen to a laptop, or tablet.