chernmax
NOT Politically Correct!!
Berg's case is still waiting to be scheduled for conference and Keyes hasn't made any petitions or applications to SCOTUS yet, as far as I know.
It's not really that this one has been 'picked'. It's just that the application has been scheduled for conference sooner than Berg's petition has been. Berg made a petition which had to wait for a certain time period to elapse before being scheduled for conference, per the procedures for a petition for writ of cert. Donofrio made an application, which is procedurally handled differently. This application isn't asking SCOTUS to review the case, it's asking SCOTUS to grant a stay (most likely to enjoin the NJ SOS from certifying the electors) until they can review the case. Because it is an application and not a petition for writ of cert, it can be acted upon quicker. Donofrio had this application denied by Justice Souter (who would have been the appropriate Justice for cases arising in that particular Federal court district); but he decided to try his luck with Justice Thomas, and seems to have found a more sympathetic ear.
I'm curious as to why Thomas is referring the case to conference though, since he could have just decided to grant the stay or not grant it himself. Maybe he intends them to consider the question of granting a writ of cert (i.e. deciding to review the case on its merits) at that conference also. Or maybe they just have a policy to refer 'appealed' applications to conference out of respect for the other Justice. It could also be that the refiled application includes some request to expedite consideration of a writ of cert, and Justice Thomas has effectively granted that application by distributing it for conference. Who knows?
So, the answer to the question is that they haven't really picked this case over any others, it's just that the nature of this motion is different and thus it fell under different procedural guidelines and made it to conference quicker. Nonetheless it is an interesting development. The fact that Justice Thomas distributed this for conference should give at least a little hope to the applicant that SCOTUS may hear the case in general. I would think he would have just denied the application, as Justice Souter had already done, if he didn't think it possible that they would agree in conference to hear the case.
Also, the implication in the title of that article is a tad bit misleading. SCOTUS hasn't agreed to 'hear' the case within the conventional meaning of that term. They still have to decide whether or not to 'hear' the case on its merits, and that is the process they are in now - that generally happens in conference.
Edit: Of course, all of this is assuming that this case actually pertains to Obama's qualification for Presidency as is indicated in that article. There is nothing in the SCOTUS docket that indicates that and I have not read any of the original case to know for sure. It probably is what they say it is, but you can never be sure with articles on the internet.
During the presidential debates when the candidates were asked which Chief Justice they would not have selected for the Supreme Court, Obama said Justice Thomas, bet he regrets that answer now!!!