Want the answers to questions about the iPhone? You'll find questions and answers here.
why do my texts come from icloud.com after the ios7 update?
Go to Settings > Messages > Send & Receive and make sure only the phone number is checked.
Basically, your iMessage settings have become slightly off due to the update.
Go into Settings -> Messages -> Send/Receive.
You should see your phone number and your email address. Given your description, I would imagine that only your Email Address is checked. If you CAN (it's probably greyed out), check your phone number off, and it should work.
Now, operating under the assumption that you can't just turn the phone number back on:
1.) Go into Settings -> Messages, and turn iMessage off.
2.) Go into Settings -> iTunes and Appstore, and tap on your Apple ID at the top, and tap 'Sign Out'
3.) Power your phone off completely (Press and hold the sleep/wake key, then swipe to power off).
4.) Power your phone back on.
5.) Go back to Settings -> iTunes and Appstore, and sign back into your Apple ID.
6.) Go back to Settings -> Messages, and turn iMessage back to ON. Wait for iMessage service to activate.
7.) Go into Send/Receive again, and verify that your phone number is now checked off.
8.) Send a text message to a friend with an iPhone to verify that the issue is resolved.
NOTE: If you do not know your Apple ID/Password, reset it at http://iforgot.apple.com.
Thanks! This solved the problem.