There is a new Delphi for iOS page on the Embarcadero web site, with the announcement of the new tool and its features. I won't list all of the content of the page, as you can read it directly at: http://www.embarcadero.com/products/delphi/ios-development .
Highlights include the new Delphi ARM compiler, FireMonkey 2 for iOS, local database connectivity, sensors support, and the mobile form designer you can see below (image extracted from the same page):
Delphi (or RAD Studio) XE3 developers will have access to the beta, so you can buy XE3 now if you want to have a look. However, if you want to make sure you get the full product when its ships (and not just the beta), the best way in my personal opinion is to buy today the Enteprise version of Delphi XE3 with Maintenance: you'll get the product when it ships and likely something more in the coming year.
I told you, this is going to be an exciting year for Delphi!