This is an announcement for the paper "Hyperbolic groups admit proper affine isometric actions on $l^p$-spaces" by Guoliang Yu. Abstract: In this paper, we show that hyperbolic groups admit proper affine isometric actions on $l^p$-spaces. Archive classification: Group Theory; Operator Algebras Remarks: 10 pages (to appear in GAFA) The source file(s), hyplp.tex: 17579 bytes, is(are) stored in gzipped form as 0411234.gz with size 6kb. The corresponding postcript file has gzipped size 37kb. Submitted from: gyu@math.vanderbilt.edu The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/math.GR/0411234 or http://arXiv.org/abs/math.GR/0411234 or by email in unzipped form by transmitting an empty message with subject line uget 0411234 or in gzipped form by using subject line get 0411234 to: math@arXiv.org.