ThingsViewController.m

@implementation ThingsViewController

static NSString *ThingCellIdentifier = @"ThingCell";

- (ResultSetTableDataSource *)thingsDataSource
{
  if (_thingsDataSource == nil) {
    _thingsDataSource = [[ResultSetTableDataSource alloc] initWithAutomaticallyUpdatingResultSet:[self.thingsRepository allThings]];
    _thingsDataSource.cellIdentifier = ThingCellIdentifier;
    _thingsDataSource.changeDelegate = self;
  }
  return _thingsDataSource;
}

#pragma mark - View lifecycle

- (void)viewDidLoad
{
  [super viewDidLoad];

  [self.tableView setDataSource:self.thingsDataSource];
}

#pragma mark - ResultSetTableDataSourceChangesDelegate

- (void)dataSource:(ResultSetTableDataSource *)dataSource resultSetDidChange:(NSDictionary *)changes
{
  [self.tableView reloadData];
}

#pragma mark - UITableViewDelegate

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
  // Thing *thing = [self.thingsDataSource objectAtIndexPath:indexPath];
  // bind conversation object with cell in this method here
}

@end

Incidentally, I've since changes my opinion on configuring the cell in the willDisplay method. The documentation was a bit ambiguous but after reading more, Apple do explicitly state elsewhere that the cell should be configured in tableView:cellForRowAtIndexPath: - my solution to this was to give the datasource a configuration block that is called after dequeuing a cell and before returning it.