Verbatim sell LightScribe media, while the original poster is asking about Labelflash media.
Just like vroom said, I haven't seen any Dual/Double Layer Labelflash media.
To be fair, I haven't been specifically looking for such media either.
@Twistage: Welcome to CDFreaks!
EDIT: Fujifilm lists no Double/Dual Layer media on their DVD for Labelflash page.
EDIT2: Memorex only lists DVD-R Single Layer Labelflash media on their DVD Write Once product page.
I can't think of any other brands that sell Labelflash media.