Thirty of the top consultants and trainers in the worldwide .NET community have come together to help raise money for an organization that is doing amazing and heroic disaster relief in Aceh Province, Sumatra, the hardest hit area of the Dec 26th Tsunamis, by offering up their services to an auction on eBay.
For more info or to help, read this.
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes