Thai cellco DTAC says it will launch a commercial public Wi-Fi wireless broadband network of hotspots in Bangkok and other areas next month following a one-month free trial period, and intends to introduce nationwide Wi-Fi access in September via a THB400 million (USD13 million) investment. The cellco, which has thus far lagged behind rivals in providing Wi-Fi facilities to augment mobile data services, is currently offering pre-commercial Wi-Fi access at 27 department stores in Bangkok this month. Some 20,000 customers have used the service so far. As reported by the Bangkok Post, a ‘nationwide’ commercial Wi-Fi service is scheduled to begin in the capital on 1 March, with a free trial offer expected to promote usage. The company is rolling out 2,500 hotspots in the first phase, and is targeting 100 major malls nationwide, with the capacity to accommodate one million users; it expects 300,000 users in the first year. DTAC currently has six million mobile data users, including 1.1 million 3G users, out of a total of 23.2 million subscribers at end-2011. It has 1,220 3G base stations covering 22 provinces.