I Will buy as soou as it is available! The reason is very simple, the rates when you call a number of the same cell company are much cheaper then otherwise (in Brazil), so if you make lots of phone calls it is MUCH cheaper to use a chip of the same company. It is not uncommon to many to two dual chip handsets to all major cell companies promotional discounts.

finally a half decent phone with Dual SIM’s and officially available in Europe,

Many travellers (personal and business) would use it, allowing a local SIM for local users to contact you as a visitor (no intl calls), yet still not miss calls from people from home not expecting you to be away. If it allows one to use the local/extra SIM’s data for your normal Apps – even better. i.e. no change of phone environment.

In Japan although you can call other Japanese networks you cannot SMS easily (or at all in many cases), so a dual SIM even locally would be useful.

if they can do it for SII and SIII better still,
is this what Apple need to do as the next leap ?