Remember the flight attendant who imperiously cut you off after the second cocktail on your trans-Atlantic flight? Or how about that tech-support guy who heroically spent hours on the phone with you and solved the mysterious problem plaguing your PC?

Tello1A new Internet service unveiled on Wednesday is hoping to catch-on with consumers by providing an easy way to give kudos to the best customer service experiences and to flag the most egregious.

Online reviews are not exactly new, of course – the Web has proved a popular medium for consumers to rate businesses and vent about service for years through sites such as Yelp and Facebook.

But Tello takes the user-generated  review-game to a more granular level, inviting consumers to rate the specific individuals that made their experience a success or a failure.

The service, which is being backed by ten well-known angel investors including Ron Conway, Dave McClure and Chris Sacca, is available for free as iPhone and iPad apps as well as through a mobile Web site.