Some time ago we began to allow people to change their telecoms provider but keep the same telephone number (fixed land line). Along came mobile phones and the same principle followed – we could change our network and keep our same cell phone number (subject to certain physical handset license restrictions notwithstanding). However, the VoIP market is still firmly entrenched and you cannot change your VoIP provider AND keep the same number.
I have been using mobile phones for years, but innovation seems limited to design, convergence and being able to access the web, stream videos, download music, access Facebook, MySpace, network, etc, etc. The basic way we use phones as a voice tool hasn’t changed, and sadly hasn’t been challenged until now.