Artoomis said:The mindblade is a psionic (magical, if you like) effect. Nothing more.
It is an effect that is basically the same as a magical weapon, but, still , it is a magical (psionic) effect, NOT an actual magical item, regardless of how much it might behave like one.
It is "a semisolid blade composed of psychic energy distilled from his own mind." It is most definitely NOT a magic item, no matter how closely it may resemble one in it's use and effects.
We will have to agree to diasagree then.
It is not a "force" effect like most other "weapons" are (e.g., spiritual weapon, Mordenkainen's sword, ).
Note that I am only coming from a strict reading of the rules. I don't think it is fair that a single class (i.e., soulknife) is forbidden from taking the VoP. It is the only class that would be so affected.
I do think that VoP is a role-playing issue and not a strictly game-mechanic one which is what tends to happen when people use it and ask questions like "is this allowed?" That is almost always an indication that the player is looking for ways to get around a restriction.
The repeated advice from the FAQ and Save My Game article is to work with the player to come up with something personal for the Vow and not merely rely on the text alone. This is very wise and reflects the theme and apparent design concept of the the VoP (and pretty much all of the BoED for that matter.)