Custom Write Panel is another WordPress plugin in the work. It is a plugin that will allow users to create custom write panels, alongside the existing Write Post and Write Page panels.
This custom write panels will appear under the Write panel, as Write Book Review, Write Aside, or Write [fill in the blank]. When a user chooses to write post under, say, Write Book Review, the write screen will be pre-set with the assigned category (Book Review). It will display certain set of custom fields (Book Title, Author, ISBN, etc).