Discovered this little gem on Mashable.com, I’m adding it to my game immediately.
Contxts are cool text message “business cards” that anyone with a cell phone can access. You set up an account, chose a handle, fill out your contact info, and start giving folks (re: chicks) your username. When someone sends a text with your username to 50500, they get back a text that contains the info you punched into your Contxt account. Typical info would include name, phone number, email, Twitter ID, Facebook ID, IM name, etc etc. You get 140 characters to play with, so really you can put anything in there. Simple and easy.
This way you either ditch the business cards entirely or supplement with Contxts.
Also, it’s totally free. Nice.