Yes, that's all true, but I blame HP more than the others because a large part of what went into Itanium came from HP. They thought that with their simulation results they would eclipse all other architectures with Itanic, and they were way off base, junking an architecture that had room to grow in the process. Even so, PA-RISC was still competitive at least into the days of Mako, though they kind of phoned it in with Shortfin (the last PA-8900).