[ Update (bumped): A video of the cosmonauts deploying, i.e. throwing, the CubeSats into orbit:
Russian flight engineers Oleg Artemyev and Sergey Prokopyev will do a spacewalk outside the ISS today. They are scheduled to leave the Pirs airlock at 1558 GMT (11:58 a.m. EDT). Their tasks include hurling four student-built smallsats into orbit: Russian cosmonauts prep for spacewalk – Spaceflight Now
The spacewalkers will carry with them two Tanyusha satellites, each about the size of a small toaster oven, built by students at Southwestern State University with demo payloads to study spacecraft autonomy technology and to measure the vacuum of space. Another pair of SiriusSat CubeSats, assembled by Russian schoolchildren and equipped with particle detectors, will also be with the cosmonauts.
Prokopyev will toss the four nanosatellites into space by hand just outside the Pirs airlock, using a manual release method used on previous Russian spacewalks. The duo will record video of the deployment for Russian media.
The EVA will be webcast at NASA Live.