It looks like the HTC Thunderbolt’s delays might be due to battery life issues. Verizon’s 4G phone is reportedly suffering from battery life that is so poor, it can drain out in two to three hours. Firmware was said to be to blame according to Engadget’s sources and there may be a fix coming in software.
Verizon has reportedly had to delay the Thunderbolt’s official launch date six times, which explains the multiple release dates that have surfaced. Hopefully they get things sorted out quickly and get the phone out.