First, it would be great to be able to send SMS messages without using the cell network, just through internet. Then you could use computers, tablets, etc. As f

First, it would be great to be able to send SMS messages without using the cell network, just through internet. Then you could use computers, tablets, etc. As far as I know only textplus/nextplus allows that, but it had become very buggy, and definitely not secure. Also you don't need a cell number to communicate with people through the cell network.