Action points are in effect for this game.
Titan blood line has a minor change, Use oversized weapon is only weapons one size bigger than the character is.
4th level spells/powers will not be able to be cast/bought/any other thing. The only exception to this rule is Earth Spell.
Class features that appear on both sides of the gestalt, do not get canceled out.
Maneuvers and stances are capped at level 5.
Tentatively, all other magic systems are capped at level 4 abilities.
Incarnum:
Meldshaper caps at 9 with bloodlines.
As your character level is capping at 6, the standard maximum essentia capacity is 2.
If meldshaping is advanced by PrC, it caps at level 12, advancing soulmelds/essentia/chakra bind count.
Full transparency between spells and psionics is alive and well.
Gadgeteer Genius, is allowed with the removal of Cunning Artifice, and the stipulation that when Jury Rig is used to make an item, it is created without any daily uses or charges.
Bloodline levels count as full initiator levels.