Updating Blog via iPhone (both text posts and images)

[amphibious]

I currently write for three blogs that have minimal requirements and reach very niche markets... the articles are long and solely text, and due to this, they are worked on from home.

Each of the three blogs I currently write for is using a different back end, one is Wordpress, one is Blogger, and one is Typepad.

I am looking to start my own blog that is going to need to be updated almost entirely when I'm out and about. I know very little about the administrative side of the blogs, but my webhost offers very easy installation of WordPress. So, if I have to do a little more work to get WordPress to do what I need, it's probably worth it just in terms of upkeep.

In any case... two main goals...

1. Full featured text-based updates via iPhone... I would prefer an optimized app, particularly one that'll work with sites that are not hosted on the servers of the blog software's manufacturer. An optimized web interface would be OK as well.

2. Being able to upload/email pictures to the blog that are then automatically resized, (preferably) tagged with the site name, and posted.

Any help with this would be greatly appreciated.