Hi all It seems "obvious" to me there should be a DUAL SIM option with the other half. 1- Not everyone wants this, but it's great for people who want a phone for personal and business, so it makes sense to have it as a add-on feature. Plus.. you can always leave that half at home when on holiday ! 2- Some markets can only be addressed if you have dual sim, and these are huge markets : INDIA, CHINA, and even if smartphones might be to some extent too expensive, Africa and the middle east. To be great, this other half should be able to snap in a extra SIM card, maybe extra battery life and stay compact. Some people have already manufactured ipod touch cases which include one or even two sims. So it's really doable and there is a huge market for this (again, some businness men + big countries such as india and china) Hope this message finds the right people !