How to send text message when they also what imessage My brother has a Windows Phone, and an iPad. Whenever I try to text him, it sends him an iMessage to his iPad, not a text message. Since he does not always have his iPad with him, he doesn't get my texts most of the time. 

Is there a way to choose when a message is sent via iMessage, or via SMS?
If you press and hold on the iMessage it will let you choose Send as Text Message. If you do this enough it will automatically start to send as a text message.

Also tell your brother to visit https://selfsolve.apple.com/deregister-imessage to deregister his iMessage so this doesnt happen with anyone else.