Google are running what I assume has to be some kind of viral ad campaign (it worked). @cdcasey just got these bookmarks from them last night.
There are 4 of them, and what's most interesting is what they don't say. 3 reference a tablet, laptop, and smartphone, but there's no mention of an ereader. I think that was deliberate on the part of Google. They don't make an ereader, so I think they'd prefer to pretend they don't exist. (Technically, they don't make a laptop, either, but they are using Chrome to move into that niche.)
There's a larger version after the break.
P.S. If you received a set and don't want them, please let me know. I think they're nifty.