iOS Is there any way to present an UIPopover from an UITableView index?

-  (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

if (indexPath.row == 5) {
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
    EnginesPopoverController  *enginesPopoverController = [[EnginesPopoverController alloc] initWithNibName:@"EnginesPopoverController" bundle:nil];

    UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:enginesPopoverController];

    self.popoverController = popover;
    popoverController.delegate = self;

    [popover release];
    [enginesPopoverController release];

    CGPoint point = {670, 600};
    CGSize size = {450, 216};

    [popoverController presentPopoverFromRect:CGRectMake(point.x, point.y, size.width, size.height) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];                 
}