My ECAS changed today too - still 'in process' and only 2 lines, but it updated to the date they received the application (Feb 20), and 'we started processing your application on April 14, 2015'. I have no idea what the significance of April 14 is unless this is when they created the file as it was around this date that I was first able to get in on ECAS.
It is nice to finally hear about some movement on some people's applications who have been waiting and posting on this board for so long. Fingers crossed for you all.