Thanks for the heads up. If you have specific companies with details post them here when i have time I will do my own additional digging but untill then if you find anything else let me know.
Thanks again for the heads up.
Kr,
Malcolm O
I would add KNC as "person of interest",
http://www.coindesk.com/problems-plague-kncminer-broken-super-jupiters-arrive-doorsteps/I'd suggest reading the comments...
As for success stories

I guess the one at the top of the list would be ASICminer (at least for IPO investors who definitely achieved ROI, not sure about the ones who bought before the fall of Burnside's exchange - BTCT)