This is an announcement for the paper "A description of $\big(C_p[L_p(M)],\; R_p[L_p(M)]\big)_\theta$" by Quanhua Xu. Abstract: We give a simple explicit description of the norm in the complex interpolation space $(C_p[L_p(M)],\; R_p[L_p(M)])_\theta$ for any von Neumann algebra $M$ and any $1\le p\le\infty$. Archive classification: Functional Analysis; Operator Algebras Mathematics Subject Classification: Primary 46M35 and 46L51; Secondary 46L07 Remarks: To appear in Proc. Edinburgh Math. Soc The source file(s), interpCR.tex: 33942 bytes, is(are) stored in gzipped form as 0505305.gz with size 11kb. The corresponding postcript file has gzipped size 61kb. Submitted from: qx@math.univ-fcomte.fr The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/math.FA/0505305 or http://arXiv.org/abs/math.FA/0505305 or by email in unzipped form by transmitting an empty message with subject line uget 0505305 or in gzipped form by using subject line get 0505305 to: math@arXiv.org.