who sale samsung infusion at&t
You may be able to find a local retail outlet that sells Samsung Infusion through AT&T. If not, you can buy them online at sites such as this: http://www.phonearena.com/news/Samsung-Infuse-4G-on-sale-for-89.99-on-Amazon-Motorola-ATRIX-4G-price-down-to-a-penny_id19833.
You can find the Samsung Infuse 4G for AT&T at most AT&T stores and at places like Phone Arena and Amazon. You can also find it here: http://radioshackwireless.com/template/simpleautocontent.aspx?pageid=9967&referringdomain=radioshack.