It's great to know, that Phex is in the Slackware packages!
Having BitCollider in Phex would indeed be great. We'd just need someone to implement it...
That's one more reason, that the Phex Team seeks Java Programmers at the moment:
http://wiki.phex.org/Developers_Wanted
Our estimates are, that there are about 6.000 Phex users at the moment.
If you want to see Phex users now (at least one...), just have a look at the
Polar Skulk.