If my grandparents joined, we would keep the top shells on because they loved eating crab roe something that I was disgusted by at the time, but am now fond of.

WSJ: Endless-Summer Baked Blue Crab

On top of that, Google's OS has surpassed any manufacturer shells in terms of speed, looks and usability, to my eye.

ENGADGET: IRL: Mailplane, Verizon Wireless iPad and the Samsung Galaxy S running CM9