Release 0.2.1 adds the ability to also attach the uploaded zip file by checking a box in the upload window.
About the plugin:
Just Unzip takes a zip file you upload from the "Write" page, unzips it, stores the zipped files in your upload folder, and associates the unzipped files with the current post. Just Unzip makes use of the PclZip php library (LGPL Licensed). WordPress 2.0.x is currently supported.
Please post concerns and comments about this plugin here.
If you are a developer, you can submit patches using the trac software installed at wp-plugins.org.
I wrote this software because I needed a quicker way to get several files attached to my post at once. The muliple uploaders were ok, but I just wanted to do it in one shot and still use the wordpress uploader rather than a 3rd party tool like ftp .
Thanks for looking.