Availble via the Chrome Webstore.
After installing, open the dialogue with Alt+t
Type some words from an open tab's title or url.
A list of matches appears: amaze! Also works with regex.
Click to open the tab you want or use arrows keys* and enter.
*Vim users: Ctrl+j / Ctrl+k
Inspired by the command-t vim plugin by @wincent.
Creation prompted by @starsandrobots.