sigh...
i didnt realize i wasnt clear

. i even made multiple posts making sure to be clear.
lets try it again...
No, you can not take multiple swift actions in the same round.
No, you can not take multiple immediate actions in the same round.
If you use a swift action spell / power / ability as a swift action, you should also be able to use a swift action spell / power / ability
as a standard action. It only makes sense.
The swift action you are using in place of your standard action is, for all intents and purposes, a standard action. It can only be used when you can use a standard action, and takes up the same action in a round as a standard action.
I do not think it nerfs sorcerers in any way, shape, or form. If anything, i think it more useful to them than it is prepared casters.
It absolutely does "hurt" (not the best word, i agree) the player because he will either be giving up a spell slot of much higher value (quickened) to cast the given spell, or he will be giving up normal standard action options in order to cast it. The player is always trading down here.
The entire arguement presented in this thread revolves around the fact that it simply doesnt make sense for a character to not be able to use something he can normally cast very quickly when he has more than enough time to do so.
Please exaplin to us how its "inconsistent and illogical" to be able to perform a task in 2 second but not twice in 5 seconds. /confused
The best example of the mechanics as written not making sense is Channeled Pyroburst from the PHBII.
If a lvl 10 Wizard (or a Sorcerer) has it memorized twice he can, on the same round, use the first one as a swift action to deal 5d4 fire damage to one target, and use the second one as a standard action and deal 10d6 fire damage to everyone in a 10 foot radius. By RAW he CAN NOT use this second casting to deal 5d4 to one target, because that effect is only produced by the "swift action" version. Thats rediculous. He should absolutely be able to reproduce the effect of that "swift action" cast time on his standard action.
The RAW says he can not stop channeling the Pyroburst on his standard action until its at least been channeled long enough to produce the effects of the standard action. It just doesnt make sense.
If you have the PHBII on you, check out page 106. The name of the spell, the flavor text, and the different effects make it a picture perfect example of why the RAW is flawed here.