With GmailMote you can control your androiddevice (smartphone or tablet)
via your gmail account.
You can also use GmailMote as a SMS Gateway.
This is an alpha-version, so there may be some bugs.
I tested this software on a Galaxy S i9000 with android 4.0.3

Please give me some Feedback and make suggestions of what couldbe done better or what aditional features should be added.
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Features:
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1)Send SMS via gmail
2)Receive SMS via gmail
3)Backup/Restore all of your SMS
4)Turn WLAN on/off
5)Turn BLUETOOTH on/off
6)Turn AIRPLANE-MODE on/off with or without wlan activated
7)Get usefull information about the device like GPS position,battery level etc
8)Let the device ring even in silence-mode
9)Change Volume
10)Turn LOCK on/off
11)Make a phone call
12)Call Log
-- incoming calls
-- outgoing calls
-- missed calls
13)Create own makros
14)Controle several devices

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POSSIBLE APPLICATIONS:
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- find your Phone or Tablet
- use automatic tasks
to turn on AIRPLANE mode at night and turn it
on in the morning
Lock the Tablet of the Kid between
9:00 pm and 8:00 am
- create your own makros