So far and nobody did this yet? Nobody? Come on...
Shadow Creature [Elan or Xeph] Factotum 3/Hit-And-Run Exoticist1/Swordsage15. Iaijutsu, invisibility, short-range teleportation... And delicious Diamond Mind maneuvers...
If you're going 3.5, you certainly don't want to be a Soulknife. Because soulknifes are terrible in 3.5