To answer the question in the subject of your post – I think the video sums it up pretty well, so watch that :)

Nice little surprise for a Wednesday night…

Read more about it here

Very nice.
Fits my use of backpack like a glove!
:)

API support for this would rock. I want it in a dashboard widget.

Everyone has this feature, Cory. You can learn about it in the product blog.

Oops, according to the product blog, there is API support. Nice!

Would be nice to be able to use an a href tag in the journal!

Love this feature. Thanks!