Did Apple fix the iPhone to other devices' iMessage problem?

I read that switching from Apple to Samsung there were problems such as the Samsung phone trying to send iMessages to iPhone users, making it unable to text with anybody that uses the iPhone. I recently went from the iPhone 4s to the Galaxy s5 and I don't see any problems with messaging but I'm worried that there are other things such as problems with Cloud or iTunes, etc. Did Apple fix all of those problems, or do I just not know about them? Because i don't know, I feel like there are no problems so far.

Its not a problem, all you have to do is shut it off. If you turn it on then you should shut it off also, its common sense