So you received a vcard (vcf file type) via gmail and the app gives you no option to save/download the attachment.

The option to preview the file fails.

Here's a 5 step workaround for grabbing the attachment and importing it to your contacts:

1) Open gmail from the browser and find the message containing the attachment. Here you have an option to download the file to the SD card.

2) Open up the contacts app, hit the menu key and click import/export

2a) if you have multiple accounts, it will ask which account to import to. Choose one.

3) The contacts app will scrub your SD card for vCards. Be patient: The more data on the SD card the longer it will take.

4) If the contact app finds more than 1 vCard it will ask you if you want to import one or multiple. Pick one. If you pick 1, then it will give you a list of vCards to pick from, pick one.

5) All set, the contact app will import the contact you'll just have to do a search to find it.

Hope this helps. If you know of a easier way to handle vcards in Android I'm open to suggestions!