Apple definitely made it easier with new SDK, since we can interact directly with the UILabel. I know it’s pretty straightforward, but I’m always surprised by how many developers disregard the documentation & turn to forums/blogs for help.

Creating multiline cells is now as simple as setting the numberOfLines property to 0 (or a predefined number) of the textLabel, which is in turn a property of the cell. Given the height of the cell is sufficient, behold a multiline cell.

cell.textLabel.text = @"Some long text...";
cell.textLabel.numberOfLines = 0;

Change the height of the cell with the tableView:heightForRowAtIndexPath: delegate method of the UITableViewController, either by returning a fixed height or by calculating the height needed to show the desired text.

Note that the text property of a cell is being deprecated in favor of textLabel.text, more info on the new 3.0 predefined cell styles can be found here.