Cards as an interaction paradigm took a small but significant step forward today with this tweet from Acura. It introduces interactivity to Twitter’s previously rather rudimentary definition of the form; the card embedded in this tweet lets you actually “configure” an Acura TLX—choose your preferred engine, steering and color—and then tweet out the result.

It’s not an earth shattering level of interactivity—in fact it’s kind of banal. But it’s meaningful in that the card does something without taking you out of your current context. This is a key aspect of what lays ahead for cards, and part of why they have tremendous potential. I’ll be writing more about this soon; in the meantime, you can learn a bit more about what we’re doing in this arena at at Wildcard.