are there already potential customers or will they come in a few weeks or months? so far you can read a lot. but there are few results to see and the course is also not as great as many people wrote half a year ago.
Depends on what customers you mean. The 30 GH that were mentioned AFAIK are just customers for mining through the SONM network. Companies like Selectel will add to that. So far from what I know from Igor Lebedev SONM have focused primarily on attracting customers and that's the main thing they do going to all these expos and conferences.
We'll wait and see, it's a brand new market. These don't always have a flying start but who knows. Golem have been trying to run their Brass Golem test version commercially but to a limited success so far. As far as I know they lack customers, but their range of services at this point is non existent so it might be just that they don't have anything interesting to offer. I think they only offer rendering at the moment. SONM will be offering rendering and a lot more after 30th June.
It's obvious there is a market for SONM's services just by looking at the huge money the Amazon and Google cloud services make. SONM should be able to take a piece of that pie, especially with their lower prices, but it might take a while for the customers to make the switch.