Still unconfirmed if it'll work with Siphon and co.

"In fact, Eater would be an overpowering addition to the game were it not for its single drawback: When you use Eater to break an ice subroutine, you cannot access cards for the remainder of your run."

This extract is from last news entry on FFG website. Let's wait for some ruling from Lukas before all the hugs ;)