mobile iPhone site version specifically for the iPhone

A mobile iPhone site version specifically for the iPhone would be great, While I use Simplytweet as my main client, the iPhone is getting to big to ignore, and that tiny half sized screen box is too small for the iPhone. There are no avatars and following new people is a real bother, no favorites either. Before I was #whitelisted, when I hit the API limit I'd have to use that site which is a real pain. I know you're busy there at twitter, so no rush, but giving the iPhone users of the would some attention would be great (and iTouch users too)

Thanks,
Zyber