It seems that the launch date for the HTC Thunderbolt at Verizon is once again slipping. But this time it isn't due to bad battery life or any other technical issue. We've been able to confirm what we reported yesterday that the delay is actually the fault of Apple and it's March 11th launch date for the iPad2. Apparently, it's problematic to launch two major platforms at the same time due to staff training. And since Apple's date isn't likely to slip, the Thunderbolt will have to wait.