Send sms to mobile using gmail

Can i make an apk that send sms to mobile using gmail…there are many gmail extension like cloudHQ,GText which helps us to send sms to mobile…

Can we make an apk about this topic…?

Please clarify your question.
Do you want to build app which sends sms using gmail or other mail system from your server or api?

from gmail

What does it mean?
This may be helpful.

i mean gmail to mobile number …