Hi,
on various monk related threads there seemed to be agreement that using Abundant step should not end the monk's round (unlike Dimension Door).
I would like to complement that suggestions with the following changes to the Dimensional feats:
1. Dimensional Agility would only apply to dimension door. References to abundant step should be removed and a "Special" note should be added reading that abundant step does not need that feat.
2. I would fold Dimensional Assault into Dimensional Agility. Being able to use the teleportation as charge vs. using it as move action and attacking with a standard action only gives +2 on attack while suffering -2 on AC. It does not give added mobility over teleporting as a move action (it might even restrict the range) like charging normally does. IMHO taking a feat for that is a bit expensive but you are forced to do that if you want to take the other Dimensional feats.