Foursquare reveals new “promoted” check-in for Super Bowl Sunday

Tech companies have long glommed on to the Super Bowl to promote their services. Remember how TiVo touted the number of people who replayed Janet Jackson’s wardrobe malfunction in 2004? Now Foursquare, the hot New York-based location service, has revealed an alluring offer you’ll want to check out — or rather, check in.

Foursquare unveils comments and photos with new iPhone app

Popular check in application Foursquare today unveiled the next version of its iPhone application according to the company’s blog. The most notable features include being able to comment on friend’s check ins and photo sharing. The app is available now.

Google launches local business-recommendation engine Hotpot

Google today announced on its blog the release of Hotpot, a recommendation engine for local businesses based on you and your friends’ ratings. Hotpot is an addition to the company’s Google’s Places initiative, a campaign to get local business owners to claim their venues, verify information and engage with customers.

SoGeo unveils location-recommendation app Whatser

SoGeo, a service that collects and analyzes location data for users, today announced the launch of Whatser. It’s a free mobile application that suggests where to go based on places that you like and that your friends like.

Business-networking app Unsocial gets new leadership

The guys over at Unsocial, a mobile app that helps people find business connections in a nearby geographic area, have certainly kept themselves busy. Since launching at VentureBeat’s DiscoveryBeat conference just a few weeks ago, Unsocial has added a new CEO, executive vice president and 10,000 users — just in time to return as the official conference app of GreenBeat 2010.

NBA to launch Turnstile check-in app for games

The National Basketball League (NBA) may be looking to take advantage of the growing popularity of consumers checking-in to locations through its own application dubbed Turnstile, according to the Wall Street Journal.

Why Foursquare doesn’t owe its success to the iPhone

Location-based check-in service Foursquare saw a massive amount of success, both globally and in the United States, because it focused on multiple mobile platforms rather than a single one like Apple’s iPhone operating system or Google’s Android, according to Foursquare executive Holger Luedorf.

Tello lets you vote down employees for poor customer service

Tello, an online service that lets users rate specific employees and businesses based on customer service, announced it is launching its website, mobile Web app, and iPhone app today at TechCrunch Disrupt in San Francisco.