I'm still trying to figure out how the multigateway exchange works for nxt. i see you can put your bitcoins and other altcoins into the system and trade on top of the asset exchange using the nxt wallet creating a decentralized exchange. my concerns are:

• Do my bitcoins / altcoins goto a centralized wallet like how typical exchanges work today?

• Who controls the coin wallets and what if they need to be rebooted?

• What prevents the multigateway admins from running away with our coins?

• What are some major advantages to over typical exchanges today like cryptsy / poloniex / bter?