Did I miss something? When/where did y'all discover a limitation on the 'number' of free actions in a round? So allowing a quickened wand spell is a 'bad' idea in my opinion... per the 'rules' any way
3.5 SRD said:
ACTION TYPES
An action’s type essentially tells you how long the action takes to perform (within the framework of the 6-second combat round) and how movement is treated. There are four types of actions: standard actions, move actions, full-round actions, and free actions.
In a normal round, you can perform a standard action and a move action, or you can perform a full-round action. You can also perform one or more free actions.
So I'll take a free action to use my wand of quickened magic missiles. Hmm, it didn't die? I think I'll take a second free action to use my wand. A third. A fourth. I'm getting impressed, but I still have free actions!
EDIT: Ok, ok, I thought this was obvious, but re-reading the thread - maybe not. Here goes...
You can place the metamagicked spell in a wand (heightened charm example above). Theoretically you can place a quickened spell therein as well, but doing so avails you nought.
3.5 SRD said:
USING ITEMS
To use a magic item, it must be activated, although sometimes activation simply means putting a ring on your finger. Some items, once donned, function constantly. In most cases, using an item requires a standard action that does not provoke attacks of opportunity. By contrast, spell completion items are treated like spells in combat and do provoke attacks of opportunity.
Activating a magic item is a standard action unless the item description indicates otherwise. However, the casting time of a spell is the time required to activate the same power in an item, regardless of the type of magic item, unless the item description specifically states otherwise.
and
3.5 SRD said:
Wands use the spell trigger activation method, so casting a spell from a wand is usually a standard action that doesn’t provoke attacks of opportunity. (If the spell being cast, however, has a longer casting time than 1 action, it takes that long to cast the spell from a wand.)
and
3.5 SRD said:
Activating a spell trigger item is a standard action and does not provoke attacks of opportunity.
So wand activation is standard action + casting time (if longer than standard action) regardless - unless a specific item description says otherwise.
Now, with all the disclaimers they put in, you could argue that a wand of quickened MM could be made to be a COMMAND WORD activation, thus:
3.5 SRD said:
Command word activation means that a character speaks the word and the item activates.
and that speaking a word is a free action... But this leads to the abuse I showed above...
Now as to metamagicked wands - so long as the spell level (NOT caster level) is 4th or less, you can do it... The table in the SRD even shows several such examples,
Hold person, heightened (4th level) for one.