Actually, there are a few examples of wafer-software around for the Viaccess stuff. Digital Freesat had some a month ago (still downloadable from their "upload" section when/if the site returns).
And what are these?...
For those with a season interface and Voyager software... Voyager has had built-in Viaccess emulation for a while already.
Programs are also starting to appear which allow partial read/manipulation of Viaccess cards.
Message/discussion boards with info on Viaccess:
Regarding Conax, there is no info at all yet in the public domain, but commercially hacked cards are now on the market. It will only be a matter of time...