I don't really think the IM02 and CK10 sound all that similar. I no longer own the CK10, so these thoughts aren't from direct a/b but the IM02 is a good bit bassier, with a fuller lower mid resulting in less clarity. Also its treble is easier going than the CK10. Plus the housings are a monstrosity compared to the diminutive CK10.
Thanks, I found the IM02s at a significant discount to the Australian pricing and have ordered them now. Will see how I go! The very sharp top end yet controlled bottom when positioned correctly was what I loved the most about the CK7s; besides that, I could use the EQ of the SB E5 to boost the bottom end to a very sweet point.
(Sorry for my weird thread jump in, the only thing that the CK7s might have in common with the CK10s might be that they're both discontinued, yet loved by many. Also they both go straight into the ears without the over ear attachment.)