Following our previous news of a Dell netbook headed to T-Mobile, we now have some fresh news! We have confirmed the upcoming Dell netbook as the Dell Inspiron Mini 10 as our ninjas have scored us some details. According to our sources, Magenta is launching several tier 3 (high-end) devices this March/April. In order to prepare for these launches, T-Mobile stores will receive provisioned SIM cards for each of the new devices. These devices include the Motorola CLIQ XT, HTC HD2, and Dell Inspiron Mini 10 with T-Mobile webConnect Netbook (Pilot stores only – Dallas, Miami, LA, Chicago). Stores are expected to receive the new SIM cards sometime this week. Stay tuned for more info!