Seven million iPads have been sold already. Now the only thing the gizmo needs is a serious competitor. The latest company trying to get in a piece of this lucrative pic is Korean brand Samsung thanks to its Galaxy Tab. Officially launched in Thailand yesterday (Sep 30), the Galaxy Tab features a 7” TFT screen with multi-touch, two cameras for video conferencing and Android 2.2. This tablet can not only work on 3G but also make phone calls on the GSM system. B22,900 at Samsung retailers nationwide. Sa