This might be targeted at the "i-folks" and become very popular, but most communities I feel related to - as this one - are more about freedom, privacy and open standards. Unfortunately that is still a minority, the average consumer just doesn't seem to care about that.
So I have my doubts about this product even if it might become something interesting - and even if they release the source of SoluOS (if they do they will certainly get a thumbs up from me though). How reliable will a paid for cloud-service be in the long run when it is not commercially successful?
We have seen Google closing down perfectly fine services because there was not enough interest, not because it was bad.