Falcon777,
Yes. While I have never directly tested this, I will use my Universal app as an example. I have it coded to use the iPhone as the base reference. Since I do not have an iPhone, I have tested it on the iPad and the iPhone 4, as well as both of those in the Simulator (along with the iPhone and new iPad in the Simulator).
The text appears in the same relative position on all of them in the Simulator, and in hardware, the iPhone 4 displays text as I expect it to.
I cannot be sure the line height is exactly doubled, but I could say that the text filled its containing area (that, through an image, I had marked the borders of) the same way on the iPhone and iPhone 4.
Since this thread was originally for a new feature request, you should probably create a new thread in the Developer Support section and include some screenshots so people can see the issue exactly. With some simple reproducible code, people might be able to help better. [import]uid: 17827 topic_id: 29336 reply_id: 122334[/import]