Heh, I was going to post on the druid thing too... looks like I was a little slow on the draw.
Interesting note, however -
1) Druids can spontaneously channel prepared spells into Summon Nature's Ally in the same fashion that Clerics can with Cure spells.
2) Looking at the weapons and armor section - druids are proficient with club, dagger, dart, quarterstaff, scimitar, sickle, shortspear, sling, spear and all natural attacks. They are proficient with light and medium armor, and shields. They still cannot use metal armor or shields (though Ironwooded items are a-okay). If they wear restricted armor or use a restricted shield they lose their spellcasting, supernatural and spell-like abilities for 24 hours.
Note - this says NOTHING of using a restricted weapon. It looks like druids can use any weapon... they're just not normally proficient with weapons outside the druid list.