Ah ok - so the Eladrin longsword feat gives extra bonuses to the dex-based wizard path (which makes sense, since they're a +dex race). Can anyone confirm this?
If so, that means that Eladrin got a pretty decent racial feat - but it still doesn't make wand wizards a better choice than staff/orb (or presumably, tome). It just makes them less of a bad choice for one race. (I still wouldn't be a wand wizard, even then.)
Also, it would completely blow the top off the whole "cunning weapon" debate: all wizards could definitely pick up a cunning dagger for an additional -2 to -4 to saves, and keep an orb in their off-hand to use that implement power (if they want). They can apparently even get the enhancement bonus of their orb to their damage using another feat.
Or, they can just go Staff of Ruin in the off-hand and get double enhancement bonus to their damage. Considering you can now have -9 to all saves (vs. a Will attack) without even using an orb, that's not a bad option.