Can I use the stock SMS/MMS app on an Android tablet without UMTS module? I just got my Lenovo Thinkpad Tablet. It does not have a GSM/UMTS/3G module but there is an SMS/MMS icon. What is the purpose of this app? Does Android allow me to send and receive SMS/MMS over my Wifi Internet connection, or is it just a leftover?

I am not interested in any alternatives to the stock app. I am more curious if it serves any purpose on a device without a UMTS module and if so, how to configure and use it.

So the questions could also be phrased like: What purpose serves the stock Android SMS app on an tablet without GSM/UMTS module?
You can download an app such as TextPlus from the market for free and then send MMS &amp; SMS from that app. I am not sure what app you are talking about since I don't have a ThinkPad tablet but I know that you can use TextPlus.