TL;DR: Mobile platforms can bring (Internet) technology to a global audience that is larger than any that we have seen. Smartphones represent a very small perc

TL;DR: Mobile platforms can bring (Internet) technology to a global audience that is larger than any that we have seen. Smartphones represent a very small percentage of this audience, so there is more money in creating services that work on all mobile platforms, utilizing SMS/MMS. Warning: Even speed-reading that post was painful.