Helveticards - Minimalist Typography Cards for the Typophile, Gambler
designtaxi.com
designtaxi.com
1) Not symmetric when rotated 180degrees about the center; this is an issue as it allows for certain side-channel communication
2) full bleed; most cards have a white border for a reason: you can't glean information from looking at the edges
Unfortunately, they turned out to be very inconvenient to play with.
Loving these, although the Russian symbol for queens ("A" instead of "Q") took some getting used to.
$10 for a deck of cards (+$6 for shipping) is kinda expensive, though, particularly since I'd need two.
I don't consider $10 expensive. If the cards are well-made they should last for years (at least that's how long the decks around me seem to exist, some are older than a decade).
http://www.kickstarter.com/projects/onefreehour/revision-1-d...
Another card game with nice design is the SEO card game SERPs & Spyders: http://SERPsandSpyders.com - you learn and build SEO tactics and strategies in Magic the Gathering style gameplay.