It’s tightly integrated with both consumer and enterprise Gmail. It’s fast, light weight, and takes advantage of the huge amount of data discovery that Gist does via the cloud (rather than in-browser).
It’s been really fun to watch my friends at Gist really come into their own in the past six month. With the release of Gist in Gmail on both Firefox and Chrome, along with the Gist Gadget for Google Apps, they’ve got Gmail now totally wired.
If you haven’t tried Gist, give it a shot. And if you are a Chrome and Gmail user, make sure you grab the Chrome extension.