I found tons of info about the BLE on the Peer Cube blog pages, but I'm not sure where the "Expected Return" number comes from?
I really enjoy the site, thanks to Anil for putting it together!
I also like the twitter feed, I use it to see how many notes were issued and how many loans were available at that time. For example, if very few loans were issued, it may not be worth my time to log in and try to pick up new loans. If there is a ton of inventory and a lot of loans were issued, it might be worth my time to look, even if it's an hour or two after the drop.
Jenn