For example, you will be able to perform transfers to mobile numbers or aliases instead of the normal long addresses.
are you talking about "alias" that is stored on its blockchain?if so then it is weak in my opinion because if it is truly about mass adoption as you say it is then you will soon run out of easy aliases and will end up with long complicated ones with lots of characters. essentially the same as a "long address"!
the reason why a bitcoin address is long (160 bit hash) is because it is designed for mass adoption so that we never run out of addresses.
That's is absolutely true.
Like for gmail
But i remember icq with long chain numbers to share to be contacted... I prefer the email adress approach.
It's anyway something that will need to be dealed. When mass adoption occures.