Twenty-seven percent of top U.S. retailers do not have a mobile presence and are missing out on key opportunities to engage with new and existing consumers, according to a new study by 2ergo.

A recent Exposure2 report shows that mobile coupon redemption rates often exceed 50 percent, while paper coupons typically have a redemption rate of only 0.2-2 percent.

Fidelity International has introduced a free application for the iPhone that lets investors track the performance of funds on the company’s FundsNetwork.

Mobile Entertainment Forum has launched a new mobile commerce initiative to help brands and retailers understand how to leverage mobile to drive customer acquisition, retention and conversion.

2ergo, an international provider of mobile marketing technology and products, has acquired ActiveMedia Technologies Group as part of its expansion into India.

Retailer Simply Wireless is partnering with mobile marketing software company 2ergo Americas Inc. to create integrated SMS campaigns and mobile Web sites.