It would be quite logical and anticipated that Samsung will be the first company to develop a smartphone with built in cryptocurrency storage wallet it would be nothing amazing.
It sounds really cool without a doubt but i would not dare to store my coins in my mobile wallet even if there are a lot of features because the risk are higher than we think, i am sure majority have lost a cell phone in their life time and the high risk of hackers getting hold of your data is another factor you have to consider when you plan on storing your coins in your mobile wallet.