Seen about 4 so far. Here is the link to 1. Seen one from Boeing, one from South Carolina and one out of TX. Good to see them flying again.
http://flightaware.com/live/flight/BOE5/history/20130427/2030Z/PHKO/PHKO
ZA005 out testing the GEnx-1B PIP2 engines 
Ethiopian went back into service today carrying passengers between Addis Ababa and Nairobi - the first airline getting their 787’s back into service.