Today RadioShack announced that it will open 1,600 of its retail shops at 6AM on June 4 to accommodate those who pre-ordered the HTC EVO 4G Android/WiMax phone. RadioShack will also give those who pre-ordered the EVO 4G a 15% discount on all accessory purchases made that day. RadioShack said it is also setting aside a number of EVO 4Gs for those who didn’t pre-order. The EVO 4G costs $200 for new and existing customers with activation of qualifying plan. RadioShack also said that select stores will have “EVO 4G Experience Centers’ which will let potential customers see what the EVO 4G can do. RadioShack notes that people should call their local RadioShack retail location ahead of time to ensure that it is opening at 6AM on June 4.