I have been using Delphi for some years now and have also done development with XCode and DotNet, so was very interested in the latest version of Delphi. It seems to do something unique, you can develop software to be deployed to various different devices and operating systems. From what I have seem developers are successfully using Delphi to produce Apps for iPhone and iPad, the surprising thing is that they are true native apps and do not rely on any virtual machine like Mono.
It does sound almost like development nirvana, where you can develop the business code and from a single code base deploy to different operating systems and devices, this surely is the future of software development. Recently when I saw demos of PhoneGap I thought this was the future, but after reading an article about Facebook and their problems with HTML5 and the fact they are moving back to native apps, I was not sure which way was the future, HTML5, PhoneGap, Mono or XCode, Android and DotNet. I have not used XE4 yet, but I am looking forward to using it and exploring what potential it might have.