Hey guys..i found a txting app that works through wifi!! It keeps your actual number! It works for me!!
I have tested it on the cyanogen mod that we have for our powerful little device! And it works!
Enjoy!!

https://play.google.com/store/apps/...sImNvbS5jb250YXBwcy5hbmRyb2lkLm1lc3NhZ2luZyJd
If that does not work then try this one
https://play.google.com/store/apps/...lt#?t=W251bGwsMSwyLDEsImNvbS50ZXh0ZXIuYXBwIl0
I have tested it on the cyanogen mod that we have for our powerful little device! And it works!
Enjoy!!


https://play.google.com/store/apps/...sImNvbS5jb250YXBwcy5hbmRyb2lkLm1lc3NhZ2luZyJd
If that does not work then try this one
https://play.google.com/store/apps/...lt#?t=W251bGwsMSwyLDEsImNvbS50ZXh0ZXIuYXBwIl0