SMS and email (well done Yahoo)

At last a major email provider has integrated SMS and email messages into the same interface. RSS came before, but really there is no reason that these two technologies shouldn't be seamlessly mixed; we already do both from mobiles and one is just a handier way of reaching people on the move, while the other allows larger messages.

I want to see the app try sending an email and then, if there is no reply within say 20 minutes, sending the same message as an SMS.

Also, what about us in the UK? Where are our messages? Bring on GrandCentral....