The SRD does say you can manifest a swift action any time you could perform a free action.
So, yes.
Ok, so if I'm reading this right, you can still only get two full attacks, one normal one, and one pouncing charge from another source. And IMHO you have to do it in this order, because as soon as you pounce once, and then manifest Lion's charge, the spell does nothing, because all its conditions have already been met. You've executed a charged and done a full attack in the same round. The spell doesn't add anything else. You can't do it again, because it says "in the same round". Only an immediate action maneuver or something like that can add another charge, maybe. But we're pretty deep in the same territory of Battle Jump and Sudden Leap shenanigans, so it's really not any worse, compared to those, IMHO. It only gets bad when you combine the two, maybe.
Now even with the most literal reading of charging this is now:
Make a full attack, then manifest Lion's charge, which now allows you to charge.
Charge, making one attack, and then make a full attack from Lion Totem.
And NOW you get a shaping Lance of Neverending Charge and Great cleave and make more pounces each time the lance triggers on a cleave
. Or maybe there was something else needed, I don't remember exactly. IIRC you need a lot of movement speed for that to work
.
The movement limitations of charging have not changed. The moment you make an attack, you lose the ability to move, as per my earlier quote: "You must move before attacking, not after."
That's what the spell circumvents, IMHO, due to its iffy "in the same round" wording.