Storm Raven said:
What part of "all movement must be in a straight line" is unclear? It doesn't say "charging movement", it says all movement. Not "some", "part", or anything other than "all".
It says "all movement" under the charge action. It does not say "all movement during
the round."
So, technically, in 3.0e, you could take a Hasted partial action to move in any way you want and then use the rest of the round to charge, following all the charging rules, including going in a straight line. Of course, you could also charge, ending normally, and then take a partial action to move, using the same logic.
The way it is written, it means, when charging, all you movement must be in a straight line. You are not charging when taking your partial action.
Again, this is off-topic and, besides, does not work that way per the FAQ anyway, so let's drop it here and take it up in a new topic, of you like.
This is a moot point for 3.5, though, as there are no "extra" partial actions like in 3.0.