When I saw three new SMS APIs, Kinross, Oventus & Txttools added to our index I thought that I might as well dive into this telephony area a little more deeply. A few minutes of clicking and I learned just how ignorant I was about this space. My previous understanding of the texting service provider arena was based on limited exposure. I had only heard of Tropo & Twilio and I assumed that they were the main players with other SMS sites simply wrapping around them. It seems that just the opposite is true, and that there is a lot of fragmentation in this area.