From now until the end of October, Korea Telecom (KT) is offering free Wi-Fi access at all Starbucks locations in Korea through their Nespot service.

Nespot is KT's Wi-Fi hotspot service. The alternatives for wireless Internet in Korea are WiBro and HSDPA.

Update: The Korea Times explains the details of the new free Wi-Fi promotion at Starbucks:

One of the places that guarantee good wireless connection is Starbucks coffee shops. Celebrating Chuseok, KT opened up its Nespot wireless Internet service for free at the American coffee chain from Monday. The promotional event continues through October.

One must sign up as a member on the Web site of either KT, Daum Communications or Starbucks. Once in the cafe, Web browsers will automatically be connected to the Nespot site and members can download an ID and a password for free Internet use of three hours.