Mobile environment, IMO, is hyper focused towards the software content consumer rather than software content creators. While what you say is certainly possible

Mobile environment, IMO, is hyper focused towards the software content consumer rather than software content creators. While what you say is certainly possible to an extent, a person attempting this will be much more hobbled than someone with a cheap laptop, access to constant electricity and an internet connection. This situation can be remedied if the dev environment owning companies in question - Google, Apple and Microsoft - make a substantial attempt to make the mobile environment conducive for software development. But I honestly don't know why they would do this because the incentives aren't extremely strong here. The vast majority of developer population across the world already has access to the tools mentioned earlier. If you are talking about the populations of the developing world who don't have access, then the companies in question would rightly ask what is the incentive for the effort required to target these populations when it's unclear how many of them would want to participate in this sort of activity. That said I'd love to see mobile devices with environments as configurable as desktop linux, while giving you full control over the hardware, including even the radio reciever (if not the transmitter).