I think Feb/March applicants found their eCAS update within 60 days.. But now it looks over 75 days or so due to greater applicant than normal months applied from April-June in fear of bill C-24 implementation. My family applied in April 24 and still no update..
Have a look at the excel file, it gives you a better estimate.
https://docs.google.com/spreadsheet/ccc?key=0Aqi6FPDNYK_xdGplaHhxWFhVQkxFTjB5LUZ2anU2clE&usp=drive_web#gid=0
Who fixes timeline errors in the spreadsheet? I changed my arrived date because I had to resend my application. The rec'd date was May 8, 2014 and it was a single application.