I use Safari sans Flash, and so I launch Chrome for times when Flash is needed (which is a few times a week). I was having the same problem as TJ: setting a global shortcut key to launch Chrome via the Developer menu wasn’t always working. However, this AppleScript works like a charm.
Be sure to download the “updated” script found at the bottom of TJ’s post. It fixes a bug in the original script.
And for the curious nerdy, my keyboard shortcut for this is CMD+OPT+G and I’m using FastScrips of course.