Is it possible to access a mobile users phone contacts from a web page? The company I work for would like to use QR codes to direct people to a coupon on their website and then give viewers the option of sending the url to their friends in a text message.
Obviously this would be an opt in service. Perhaps you would need to build a mobile application to accomplish the task? If anyone has an idea on how to accomplish this or something similar please let me know.
As far as I know, it is not possible to access the contact database via a web page, on any of the major platforms; in order to access this data, a native application is required.
Nate is right.
The only thing that you can do (that won't accomplish everything you need) is encode SMS message in QR code (e.g. "sms:number:subject" see http://code.google.com/p/zxing/wiki/BarcodeContents), this way your company will get user's phone number as part of SMS message, but not numbers of his/her friends.
An API for accessing contacts is being built into the WebApi by Mozilla but as of today it's not enabled by default and I expect cross browser support is still far off.
