You can now get free bussiness card as Google Voice is offering 25 free business / personal cards in US that includes free shipping, printing and much more . OFFER limited to 50,000 sets, printed by iPrint.com
what you have to do is just show your Google Number To get your free cards and go to https://www.google.com/voice/promo/iprint ; If this URL doesn’t work then try login to Google Voice and click on ‘Show Off your Google Number’ ad on left side bar
You are just 4 steps away from your bussiness card- 1. choose any of three styles provided
2. Add the information you would like on the card
3. Fill in your shipping and email details (iPrint will use this only for the purposes of confirming and sending you your cards)
4. Your personal Google number cards should reach you in 10-12 days
trail.. checking for errors.