Update: Nest has posted a very helpful Q&A about what will become of Nest after the acquisition, and things like iOS compatibility. Check out the full statement here, and see the pasted Q&A section below. Also, you can red CEO Tony Fadell's statement on Nest's blog, right here.
Will Nest continue to support iOS so I can have the Nest app on my iPhone or iPad?
Yes, absolutely. We’ll continue supporting iOS, Android and modern web browsers so you can check in on your home and control the temperature from wherever you are.