[Jack Simth]

Not really; with the soulknife's 3/4's BAB, the enhancements to the blade come along at such a speed that the SoulKnife's attack bonus pretty much keeps up with a fighter... who's using a +1 weapon throughout (ain't gonna happen). And the fighter will get more attacks. The soulknife isn't proficient with medium or heavy armor, and doesn't have lots of nifty spells, so AC is pretty much always going to be a problem for them (compared to the Fighter, anyway). The soulknife gets a decent skill set, but notably missing is anything that lets them use magic well - namely, Use Psionic/Magic Device. They can do lots of nifties with that Mind Blade (for example, with Psionic Meditation, Psionic Weapon, and Deep Impact, the Soulknife can deal a melee touch attack every round... but only the one; more commonly, it would just be Psionic Weapon and Deep Impact for an opening touch attack with a weapon charged for a Psychic Strike). But compared to, say, a Cleric with Greater Magic Weapon (Same BAB, same enhancement bonus progression, and spellcasting to boot) they aren't necessarily going to do so well.