That is certainly an idea. For now I just wanted to get it out there.
Practically, I do feel that a bookmarklet is less intrusive than a browser plugin. A plugin would also have to be written differently for each browser.
But yes I could offer it as an option and it's certainly a possibility. Thank you.
That said, recently I'd moved away from Firefox because the developer console stuff had gotten a little bulky and they felt sluggish. Hopefully they also get around to optimizing it for performance someday too.
I completely agree with the "7 was little different from Vista" claim. I had purchased Vista Ultimate (stupid me) and then my only upgrade path was 7 Ultimate, which was so little different from 7 Pro that I completely regretted buying Vista. Especially when I found that the XP -> 7 upgrade price was the same as Vista -> 7 upgrade price.