This started off as a full-stats version of the vanilla inventory, expanded horizontally to include stats, resists, vitals, combat bonuses, exp bars, and weapon information. I've included every piece of data I could find that was relevant. Now, it's merged with the persona window as of GU57.
The old one can be found here.
It is a drop-in replacement for the standard persona window, so install it as you would any other interface piece. If you wish for the inventory window to not close when esc is pressed, open the included eq2ui_mainhud_persona.xml file in notepad and change AllowCloseOnTop="true" to AllowCloseOnTop="false" on the 2nd line.
The window is not grey for everyone, it uses the default inventory's styles. I have Passa's Stone UI Skin
installed, it should look similar in style to the other default windows for everyone else.
Let me know of any bugs or other issues in this comment thread or via PM.
Apr. 29, 2011: GU60
Yet another massive overhaul, unfortunately I had to leave the experience summary out until I can figure out how to add working entries to the page selector (can get them to show up, but no idea how to make them show a new page).
The Faction and Options pages will cover the stats due to needing a bit more space, all the others should leave them visible.
Feb. 24, 2011: GU59
Removed weight value as it is no longer in the game data
Added a search button (same function as /finditem)
Combined the text fields for AA in Experience Summary to a single object
Uploaded as a persona window, inventory submission will no longer be maintained