To me, anything which is not tangible is not trust worthy. thats why i don't consider mobile internet to be internet from any telco. Having pros of mobility it has also the cons of range, coverage, congestion and limitations(limitations of handset after all its a mobile not a real PC) after connection.
For any telco to able to provide what they are advertising, they need to invest 3 times more than they already invested but i am sure YOU won't go for a Rs.1200 or 1500/month unlimited gprs/edge package which you are getting in 400 or 500 rupees. And why would Telcos invest 3 times more?
After all they are telcos not ISPs.
Its all about making internet hungry feel that they are being fed in their palms while making tons of profit.
Speaking of tangible, i have been using PTCL DSL for past 6 months or so..... I don't get more than 75% for what i am paying/what was advertised so how could one expect from a non tangible source.
Thats why i don't use my zong free internet even when there is no electricity to use my DSL. trust me its "really free" cause i don't have to load 484 rupees every month.