If these capabilities are disallowed for a specific reason, or are available as an upgrade, please just let me know. :)
I'm not particularly new to WordPress software, but I decided to try out WordPress.com hosting; I noticed that I could not add any sort of custom meta-data/fields to posts and I find this is really restricting. The new theme, Oulipo, making having this capability very attractive since I'd be able to add stuff like "Mood", "What I'm Listening To", and "Sources Cited" right into the sidebar. I would really like to have this capability so I can get the most out of my personal blog.
My second request involves Amazon. I read a lot of books and like to recommend certain science and math books that I think are approachable by the masses. I'm hoping to get some sort of widget that works nicely with Amazon services. Most preferrably, I'd like to be able to use my referral account (I'm not banking on making any sort of cash here, and even Amazon spells out that the sort of account I have is made for hobbyists, not merchanting) - but just having a stable and post-embeddable widget that lets me pull up book data and images based on titles/ISBNs would be excellent too.