An examine button has been added to the store interface. Some things have not been added yet such as which feats are required to equip the item, but one thing which is already implemented (we're sure players will appreciate this) is the addition of points listed in the item's examine window*. So you can get an idea of whether or not you can equip it before you buy it.
* Please note that for now item points will only show up in an item's examine window when you examine it in a store.