Samsung finally took the wraps off of its brand new Galaxy S5 smartphone on Monday and we took an in-depth look at the handset right after the company’s Mobile World Congress press conference was over. Long story short: we think it looks like a solid iterative effort from Samsung but overall, it lacks key features that scream “buy me.” There are a few new additions that future S5 owners will find particularly interesting though, and for us, the Galaxy S5′s new “ultra power saving mode” is somewhere near the top of the list. As we explained briefly in our Galaxy S5 hands-on preview, Samsung’s new hero phone will ship with a new ultra power saving mode that extends battery life when