What are there...2 bows that have a general AB/EB? A shortbow with no STR bonus, and the Masterwork Longbow? Of which I have seen about 3 for sale? I'd love to hear from the Dev's what the reasoning is behind this. Is there an anti-archery bias on purpose, or is it a simple oversight?
As a side-note...can't you sacrifice a ton of your XP and get someone to enchant a player-made bow? Does THAT give it a permanent AB/EB?
I believe there's actually four +1 AB bows that drop in the loot tables. I have personally only found one in my entire time here, but I know several people have found them in various places. They are exceedingly rare, however, and are generally pretty bad on the damage end of things.
Enchanted bows, on the other hand, do have a permanent AB as well as a Strength bonus limit (if you get the proper bow enchanted). They are fairly difficult to make, though. They are a solution to the ranged weapon problem... At level 14.
I would love if there were more +1 bows in the loot tables. The fact you are pretty much forced to either take Rogue levels or Arcane Archer levels in order to damage a good number enemies past the first few levels is kinna... Meh. I believe a fair few awesome bows were suggested in the Item Thread, but I have yet to see any in play.