procedure TForm1.Button1Click(Sender: TObject);
var
  NewPage: TWinControl;
begin
  TabbedNotebook1.Pages.Add(Edit1.Text);
  NewPage := TabbedNotebook1.Pages.Objects[TabbedNotebook1.Pages.Count - 1]
    as TWinControl;
  with TLabel.Create(Self) do
  begin
    Left := 20;
    Top := 20;
    Caption := '&Телефон: ';
    Parent := NewPage;
  end;
  with TEdit.Create(Self) do
  begin
    Left := 100;
    Top := 20;
    Text := '1-800-555-1212';
    Parent := NewPage;
  end;
end;