Chrome for iOS please.
“3.3.2 An Application may not download or install executable code. Interpreted code may only be used in an Application if all scripts, code and interpreters are packaged in the Application and not downloaded. The only exception to the foregoing is scripts and code downloaded and run by Apple’s built-in WebKit framework.”
I.e. for browsers makers the concern is not that they'll be rejected from the app store, but that they can't even legally build them with the Apple's SDK.