No we are not using escrow, The ICO period is set at a long enough length that you will be able to start to see the project progress before the end of the ICO. The primary concern most people have is if the initial coin release will take place. Early next week I will demonstrate the initial release version that will be used for the initial coin distribution. There is no cap, the ICO price would adjust if it went over 750 BTC.
No Escrow? Good luck raising 750 BTC!
By the way, there is already another coin using POST - https://bitcointalksearch.org/topic/annpostcoinpost-pure-pos-revenue-sharing-board-partnership-50-burnt-1402308