At this time, it is not exactly clear what kind of wireless data plan will be recommended for the Optimus T, but we will find out in a few days when the smartphone shows up in Radio Shack retail stores. Nevertheless, it is great to know that no long term commitment with T-Mobile will be necessary.
The LG Optimus T is basically T-Mobile's version of the LG Optimus One and it is aimed at first-time smartphone users or as an entry-level Android-powered handset. It features a modest 600 MHz processor, a 3.2-inch capacitive touchscreen, and a 3-megapixel camera with auto focus.
source: Android Central