Possibility of dump crossed my mind as ICO was raising too much money way too fast. However it has now slowed down and Sirin Labs raised just above minimum needed to move forward with production of both devices. From my experience, ICOs that offer free tokens and huge bonuses are the ones people tend to dump. When people get a lot of free tokens, they have no incentive to hold. If the tokens are free "bonus", one can dump at any price and still make profit. Sirin Labs does not offer any referrals or bonuses. Price is set and follows -50 tokens per Ether as ICO is moving towards the end. On the first day, participant got 1000 tokens for 1 Ether. On the last day it will be 500 tokens for 1 Ether. That explains huge number of participants for the first 24 hours.