Price, platform-nativeness, and other corrections
Some of the comments here are a bit misleading, mostly on price. That's for the top-of-the-line "Architect" edition. Normal Pro versions are, for a brand new license with all languages and platforms, less than half that. And if you only want one language - C++ Builder, for example - it's a third. And then if you are a hobbyist programmer or a small dev team, there's AppMethod, which is the cheaper edition, priced very nicely, as a per-month subscription of $25.
The Architect edition is comparable to Visual Studio, which is 5500 pounds for their top edition! So, especially given you can use it for $25 / month, I'm not sure complaints about price are really justified.
Another comment was about the controls being "mimicked". The commenter failed to mention the most important bit - that you can in fact use platform native controls if you wish. Some are inbuilt, and others are available as third-party open source components.
What this means is that you design a UI and then in platform-specific descendants - you can create variations of the one form or UI for various devices or classes of devices or platforms or whatever, it's quite neat - you can specialise to specify that on, say, iOS the edit box is a native edit box, on Windows it's a native edit, etc. Or, if the inbuilt controls (which are skinned to match the OS they're running on, yes) are good enough for you, you can leave it at the default and just use them.
Also, someone asked if Delphi is still being used - absolutely. I moved my consulting company over to using Delphi almost entirely a while ago, because demand was rising. Most of that seems to be in the cross-platform areas - most clients I see seem to really like writing an app once and then just varying the UI to make it correct per platform or device.