You can send and receive texts for free from your computer or iPod. I have a cell phone. I don't have it on most of the time and it's sometimes charged up.... usually when I might need it while I'm out. I'm a techno-geek, but I hate being so connected. Kinda weird.... but anyways...
if you go to pinger.com/textfree you can create an account online.
Why did I do this if I already have a phone AND the app on my iPod? Because I HATE texting from my phone. I have a phone.... not one of the fancier ones with a little keyboard... AND I have fat fingers. I can text from my iPod if I happen to have it nearby, but I'm more often (like always) at my computer. It's CONVENIENT to be able to send a text from the computer AND easier (for me) with a regular keyboard.
And to the OP... I don't disagree with the idea that non-texters are left out on this, but it's a marketing thing and they have specific target market metrics they're dealing with. I get ads from places I've dealt with online that have special deals for previous customers that aren't available to first-time buyers. Or deals only available online (as opposed to walking in to their brick-and-mortar store locally) .... so target-market promos are nothing new. They just suck if you're not part of the market being targeted.