Well sort of. In some sort of cruel joke, a Vista skin has been created for the iPhone. This can't help anyone.
People with time to waste have decided that it would be a good idea to make an Iphone look like it's running Vista.
Why anyone would want to take Apple's chunk of glass, chrome and shiny black-stuff loveliness, and sully it with that steaming pile of bloatware is utterly beyond us, but the people at Modmyifone have been and gone and done it anyway.
You'll have to Jailbreak the thing first (and it gets worse) and install the skin (what? It's just a skin? I can stop hyperventilating now) manually in order to completely ruin the lickable aesthetic of your expensive handset.
Rumours that the install allows the Iphone to further ape the performance of Vista by taking 15 minutes to dial a phone number, and refusing to do anything without asking you half a dozen times if you are really sure you want it to do the thing you just asked it to do, were made up by us.
If you're really determined to ruin your Iphone you can get the download of Vista Perfection here. Or just sate your destructive tendencies vicariously here and save yourself the pain.