www.WirelessFederation.com/news: Vietnamobile, the new entrant in the Vietnamese mobile market has introduced a new prepaid promotion which will be offered until September-end. The new promotion will offer the subscribers with two minutes free for every two outgoing minutes. The free talktime will be available from next morning until next two days. Vietnamobile is a partnership between Hutchison Telecommunications International and local operator Hanoi Telecom.