GMail is the internet web based email for Google which enables you surf the web within your email. You can choose to search within you email or just search the web from your email interface.
The beauty with all this is that it comes at no cost other than having a Gmail email account. The cost of a phone call had tremendously dropped to the extent that it was cheaper to call as compared to sending a text.
At least for a start, you have as many as 50 free SMS texts that can be sent to mobile numbers, I have not exhausted mine so I'm not sure what happens after that may be that will be our next article on this subject.
The mere fact that a mobile phone is in most cases with the person your sending this message to, it appears to be more instant than an email most especially if that person has not got access to the internet but the GSM network is available.
In Uganda, the Gmail SMS service is available to those on MTN, Orange and Uganda Telecom. It is not clear when networks like WARID, Airtel among others will get on board though Google is quick to add that; "If you are a mobile operator, and wish to integrate with the SMS feature of Gmail, please drop us a note to: firstname.lastname@example.org"
Replying to (SMS) Messages:
"When you receive an SMS message from a Gmail contact, add the incoming number to your phone's address book (this number is associated with the sender's Gmail account, so you can use it to send Chat messages to that person in the future). Then, you can reply to the message as you would any other text message, and your reply appears as a Chat message in your friend's Gmail account." from Google.