This is indeed a very interesting and impressive project reminds me of iEmu (was developed by Chris Wade, who is now CTO at Corellium) and Cider, which are both not developed anymore. I guess the success of Correlium depends on how much they are going to charge for their service in the future. Moreover, it's very questionable how Apple will react concerning legal stuff ... But yes, it's definitely a project with huge potential.
By the way: If anyone is interested in this topic, this might be also interesting to read:
https://worthdoingbadly.com/xnuqemu/
Jan