Spring Attack movement
From the FAQ:
...Or must you move both before and after your attack to avoid attacks of opportunity?...When or how often you move during your turn is irrelevant, but you must make an attack to get the benefit.
The Sage says (in e-mail, but see the FAQ entry above as well) that to use Spring Attack you must move before or after the attack. This is a rather loose interpretation of the words "Moving in this way..." which seem to imply that you get the benefit of the feat only if you move both before AND after the attack (you "spring" in and out). Nonetheless, the
"official" rule is that you must only move either before or after, and can move both before and after if you want to. Either way you avoid AoO from the defending character (AoO's generated by your movement, that is).
Thus, when Hasted, you may:
Move and Attack with your standard action (using Spring Attack), and then attack again with your partial action. You do this, one would assume, to avoid the AoO from moving past your opponent's reach weapon, perhaps?
Partial Charge, using Spring Attack, and then use your regualr action to do a Full Attack. Again, you avoid an AoO from reach weapons.
For two attacks AND a Spring Attack both in and out, try this:
Partial Charge (with Spring Attack) fron one attack
Attack and Move (with Spring Attack) using your regular action.
There you have it - a Hasted Spring Attack in and out with two attacks in the middle.
There is some unresolved active debate about whether you must continue to move in a straight line (because you Charged in this round) or not. If I recall correctly, The Sage has not yet ruled on this, though he did rule that if you Ready an action and Partial Charge, all movement must be in a straight line. This is not really the same as Haste, so we'll see - one or two of us have asked him.