There are already several ways to send SMS from Apple iPod Touch via WiFi, and one of them is using MogoTXT. Because you could use MogoTXT on any mobile phone, no matter an iPod Touch/iPhone or an old Motorola. For iPod Touch users, MogoTXT will connect to internet and let you send free SMS messages to you friends.
How MogoTXT works? According to it's CPO Andrew Won:
"You do not need a cell phone with a browser to use Mogotxt’s service. You can use any old cell phone and you can text using Mogotxt exactly the way you already text. We kept it simple.
Mogotxt is the first and only company to offer the following:
1. Free mobile-to-mobile texting to and from any cell phone, Apple iPod Touch or computer. (Very soon, Mogotxt will also roll out SMS service for the Nintendo DS and Sony PSP devices. A native SMS application for the Apple iPod Touch (also useable on the iPhone) is also in the works).
2. Free one-to-one text messaging that allows SMS messages to be easily sent and received among cell phones and iPod Touches. (As noted, other Wi-Fi or other network-enabled devices will be supported soon).
3. Free reply-all, group texting messaging (chat) with an unlimited number of cell phones and iPod Touches. (Again, other Wi-Fi or network-enabled devices to be supported soon).
4. A number of advanced features that enable users on the fly to (a) initiate and conduct up to five group chats simultaneously, (b) invite others to join ongoing chats, (c) join or quit ongoing chats, and (d) manage their mobile lifestyle via a brand new message management console."
The disadvantages of MogoTXT:1. Both you and your friend will need a MogoTXT account to send or receive SMS
2. The SMS messages sent by MogoTXT are ad-supported
More info:
MogoTXT
[via GigaOM]
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