Now they just need an extraction pipe that isn't a) slow, or b) a blocking round robin whitelist.
Build craft also now has the emerald pipe which acts as a advanced wooden pipe/filter that allows you to specify what you want to be pulled out of the inventory. As for the water proof emerald pipe it acts as a upgraded wooden water proof pipe allowing it to extract at golden water proof pipe speed instead of watter proof cobble stone pipe speed.
With all the tools in build craft it can match most of what redpower can do with heavy use of gates and redstone. Grant it is no where near as easy or complete as redpower is since it is lacking a few key features. Which once we get logic pipes back in its new and improved format things will be even greator. Until then we have AE which adds a ton of features for sorting, crafting, and inventory management.