The Rayovac Indestructible has a 2-D LED offering available at Wal-Mart. The sucker is huge for a 2-D. So, naturally, I'm going to buy it sooner or later. :D
You can also find Eveready 2-D LED flashlights in their "workman yellow" design. I haven't played with one personally, so I can't tell you how the runtime compares.