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By all indications in the Google News, it appears that there is a strong demand for a Service Pack for Delphi 7.
Going by Borland Software Corporation's track record, it would appear that a service pack for Delphi 7 is imminent.
See Service Pack for Delphi 7
This article discusses the new Delphi 8 property access specifiers.
Continued discussion of undocumented Delphi 8 Property Access Specifiers, and other ways of adding and removing delegates / events handlers, including clearing the list of all the delegates / event handlers.