http://www.scotusblog.com/2014/02/opinion-analysis-the-court-narrowly-limits-a-precedent-allowing-co-occupant-objections-to-warrantless-consent-searches/

and

http://www.scotusblog.com/2014/02/five-thoughts-on-fernandez-v-california/

It doesn't sound like this case on its own is especially important or likely to affect a lot of situation. It seems like one in an ongoing string of cases showing a long disagreement on the court about warrant requirements and "unreasonable" searches.