>Ruthless transparency from the telco as to how much you’ll pay for every MB.
When have any of the telcos even been translucent when it came to pricing? They hide real prices in pages and pages of fine print and don't offer any details on taxes or fees until they print them on the bill after you've signed up.
>A price-per-MB that, off the top, feels reasonable.
... like the rates we pay for text messages? Or existing wireless overages?
>A price-per-MB that falls during the course of the month as you use more and more.
Again, I don't trust any of the existing data providers to lower prices ... ever.
>A lightweight API so that you can obsessively check how much you spent in the last week or hour or ten minutes. So that after a while you won’t need to.
I foresee SOAP or invalid XML/JSON or servers that mysteriously go down at the end of the month due to "unexpected demand."
These are great ideas, but I think we need new competitors in the market before any of them will get implemented in a mildly sane way.