Support for No data plans
Some providers (e.g. T-mobile) give an option for a "No Data" plan. In this function, certain mobile data functions, like Visual Voicemail and MMS, will work over Mobile data, but nothing else will.
Phosh seems to think that the mobile connection is a valid one, and as a result, causes issues connecting to the internet.
It would be nice to have support for these sorts of plans.