Stumbled across them at HeavyMetalFX (PCBGM's US distributor) while looking for a DarkGlass preamp clone.
Fortunately the HMFX site has good filtering and I didn't have to wade through the 100+ PCBGM-detritus.
PS UPDATE: Found a hotkit that I like:
Tube Overdrive pedal. Friedman Brown Eye amplifier sound (BE Channel) in compact pedal format! Gain, Tone and Volume controls, a Fat toggle switch that adds lower frequencies, a Sat. toggle switch (Saturation mode). ECC83/12AX7 or 6Н2П-ЕВ tubes (2 pcs) are used. Switchable heating 6Н2П/12AX7 by...
heavymetalfx.com