Not to be argumentative, but I think your concern will remain outstanding for the foreseeable future.
What most people imagine when they think of “Flash for the iPhone” is a browser plugin that executes and displays Flash content inside web pages, just like how it works in desktop browsers like Safari, Firefox, and IE. That requires a content plugin for the browser, and MobileSafari does not support plugins of any kind. There is no way for third-party developers to modify MobileSafari or the content it is capable of displaying via the iPhone SDK.
It is possible, of course, that Adobe is developing a Flash plugin for MobileSafari outside the confines of the APIs in the official iPhone SDK, with the permission and tacit approval of Apple. But at least as recently as March, Adobe indicated that no such deal was in place.
And Gruber opines that it’s not in Apple’s best interest to allow Flash on the iPhone in any case.