Aha! Glad I started this discussion. We appear to have two schools of thought here. If ATC tell you to CANCEL STAR SPEED RESTRICTIONS, some pilots (like LookLeft) interpret it as:
Cancel all speed restrictions - those specified on the STAR plate AND the generic 250 below ten. Profile above 10 but no need to slow from profile until your company SOPs tell you to.
But some pilots (BuzzBox and DeltaT) interpret it as:
Specific STAR speed restrictions are cancelled, but the generic 250 below 10 remains.
I've also heard pilots asking if CANCEL STAR SPEED RESTRICTIONS includes high-speed above 10 as well.
So which is it? I have my ideas (which - disclaimer - as far as I know are what is meant by controllers in my little part of the Australian ATC world), but I'm interested to hear what pilots think first.