Recess appointments made during de facto but not de jure recesses. It's the right ruling on the law, but it allows the GOP to further obstruct the functioning of the executive branch.
The union ruling is interesting and somewhat dangerous to unions; it essentially says that the beneficiaries of public union negotiations can free ride on the resulting contracts. That is, the plaintiff in that case was forced to pay union fees ($40-$50 a months) because she benefited from public sector unions bargaining for a higher wage and certain labor conditions for all home healthcare workers under a specific program. The problem with this sort of thing is that it allows the direct beneficiaries of union negotiations to not support the union that got the the benefit in the first place. So the problem is that fewer and fewer people will trade the modest fee for union representation, unions will lose efficacy and bargaining power, and eventually fade away. Some folks like this. But those folks have never been laborers in an economy devoid of union representation, as was the case in the 1800's. But, if they succeed in dismantling unions, they certainly will have the chance to work in such an economic paradise in the coming years.
Hobby Lobby is a disgrace. It will be overruled by the Court within a couple decades.
Edit: religious institutions and charities are already afforded a lot of options for not paying for birth control under the ACA. Justice Kennedy discusses how such a system could work with closely-held corporations, I believe.
S-corps are not the only closely-held corporations; it's an elective IRS status for which some (most?) closely held corporations qualify, but not all. LLCs are not S-corps but are closely held, for example.