SmashArtist on "[Plugin: WordPress SEO by Yoast] Feature Request: Ablity to edit SEO title, description & keywords in Quick Edit"

Correct, it's a plugin that I developed to support Yoast in quick edit mode.
I also recently developed an even better plugin that allows you to edit your Yoast meta data from the front end. It's also mobile friendly to work on iPhone and Android devices, great for on the go changes. You can check it out and download my Front-end SEO Editor if you'd like.
Let me know what you think and I'll send you a copy of my quick edit plugin that works with Yoast.