The 1.2 version of Palm Pre's webOS was accidentally leaked via Palm itself, inadvertently showing off future features like an improved copy/paste, email searching and saving images from the browser.
The email search still isn't included in Universal Search as far as the version of 1.2 that was leaked was concerned, but if you want to see the other minor enhancements of 1.2, head to the Precentral forum. They're adding more details as they find them. [Precentral]