Illiad, who ?
Must admit that I have never heard of the name "Illiad" I can only presume that it is the holding company. "Free", however is very well known as they have successfully pissed the major operators, SFR, Orange and Bouygues...
If they do the same in Switzerland as they have done in France they will make a fortune. Swiss ISPs and Telcos are extremely expensive and I believe that the Swiss public will be enthralled to have some decent competition.