Ever sent a mail you regret?

Google has been introducing a wide range of features lately. Their GMail labs are proposing all kinds of enhancements. But this one proves just how mainstream the web has become: Mail Goggles.

A pun on Beer Goggles, the plug-in asks you skill testing questions when you might be drunk.

There’s some controversy over Google’s product development approach. On the one hand, Google has taken new approaches — simple search engines, an entirely new approach to email (remember when labels were new?) But at the same time, the company has started sharecropping development, by letting people submit plug-ins, GMail enhancements, and so on.

That’s a tricky line to walk. On the one hand, you want to keep things simple. On the other hand, you want to reap the wisdom of the crowds and keep innovating. While new features keep the geeks happy, Street View confuses many of the Google Maps faithful.

So the real question is: Google Goggles might work, but if it’s too hard to set up, only the math nerds will use it. And they can do arithmetic unconscious. How about tracking my shaky mouse movements, or using my webcam to check for eye redness? Now that’s easy to use.