E-M1 is rumored to have (I'd assume in raw files) finally parameters for CA corrections (first for Olympus, always was the case with Panasonic cameras)... however upon conversion from .ORF to .DNG I still can see that "WarpRectilinear" has only the data for only one plane (while .RW2 to .DNG has that for 3 planes)...
So what does it mean :
1) Adobe support being preliminary does not include that yet ?
2) Olympus does not provide that info (for CA corrections) really like Panasonic does in their raw files (and that means that evil Olympus hardcoded corrections in their software /firmware in case of OOC JPGs/ )
Closer to #1. Specifically, support for metadata-driven (opcode-based) lateral chromatic aberration for the E-M1 will be added in the next dot releases of ACR and Lr. However, note that we are almost ready to post the Release Candidate (RC) versions of the next ACR/Lr dot releases, and the CA correction will not be available in these RC versions (but will be in the final version).
thank you, off to share the news then.