Yup, I don't think anyone would seriously want to contemplate creating content on a screen that is as small as that found on a smart phone, however, if it was possible to edit content and load new routes onto a mobile version, then one could at least use it to test routes and scripting in sessions whilst on the move, and that would probably be fairly convenient in terms of time management for when you are otherwise stuck with nothing to do, such as on a commute to work on a bus or train.
I am not that into mobile phones, I think you have to be a bit younger than I am to get excited about them. Although ironically, since it is part of my job to train people on progams such as Flash, InDesign and Photoshop etc, I probably know more about actually creating content for mobile phones than many people who actually are enamored with the things, and because I actually have to own quite a lot of mobile devices in order to be able to do that, people often think I must be really into such devices. I suspect they'd know different if they saw that at home I use a 46 inch wide HD monitor on a desktop computer LOL There's no substitute for that lovely expanse of screen when creating stuff.
Al