I always try to present a popover from a cell inside a tableView this way:
[myPopover presentPopoverFromRect:cell.frame inView:self.tableView permittedArrowD
I came across this problem today, and I've found a simpler solution.
When instantiating the popover, you need specify the cell's content view:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UIViewController *aViewController = [[UIViewController alloc] init];
// initialize view here
UIPopoverController *popoverController = [[UIPopoverController alloc]
initWithContentViewController:aViewController];
popoverController.popoverContentSize = CGSizeMake(320, 416);
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
[popoverController presentPopoverFromRect:cell.bounds inView:cell.contentView
permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
[aView release];
// release popover in 'popoverControllerDidDismissPopover:' method
}