BlackBerry's proxy data, so it's conceivable they could do what SkyFire does and render Flash/Silverlight on RIM's servers then just push it out to BlackBerry's.
In general, however, Mobile Flash is terrible and desktop Flash runs badly enough on a n OS X MacBook that I wouldn't want it anywhere near an iPhone (it would likely melt it into a puddle).
Generally, I'm happy there's no Flash on the iPhone. Given Flash cookies, how many security vulnerabilities Flash has had lately, that it runs as a code interpreter, etc. makes me think HTML 5 will be a better solution.
I'm not sure people actually want Flash, but just want their videos. If more videos come in H.264 and HTML 5, FLash won't be an issue.