Apple has responded to Adobe’s Mike Chambers’ recent piece in which he claims that Flash is an open platform.

Apple spokeswoman Trudy Muller speaking with CNET:

Someone has it backwards–it is HTML5, CSS, JavaScript, and H.264 (all supported by the iPhone and iPad) that are open and standard, while Adobe’s Flash is closed and proprietary.

Mike Chambers also mentions that Flash CS5 will still be shipping with the ability to target the iPhone and iPad, but Adobe is not planning any additional investment in the feature.