How to adapt WP for PDA’s?

Can you help me to adapt the wordpress for PDA’a (Handheld)?
I have edited the classic theme so it suits for the small display of a PDA (320×240 pixels).
But the biggest trouble is the post form “/wp-admin/post.php”.
It is 20 times bigger as the display of a PDA. and there are too much useless stuff I don’t need on the PDA display. for example the header: “*Dashboard*Write*Manage *Links*Presentation….” etc.
I only need following things for PDA-users:
1.title
2.post body (may be with the richeditor, but not necessary)
3.categories (like “tags” at livejournal.com, just a string of categories separated with commas, without the button “add” etc., because this button don’t work on the PDA’s portable Internet Explorer). so the user can add any categories.
4.optional: checkboxes “allow comments”, post status “private”, timestamp.
That’s all.

I think, many PDA-users of the WP will be grateful for this lite PDA-version of WP.

Thank you in advance!