You can send a bulk SMS to targeted groups of people.
In order to use this feature you will need an account at BulkSMS.com. You would replenish credits with them as needed. The system handles the sending to your groups and recording of statistics.
You can personalize a SMS by adding a first name.
The system keeps a history of sent SMS. You can see credit issues, undeliverable and sent statistics. For these you can drill down and get details of the contacts.
Donor profiles enable you to create groups.