Arduino Yun and gprs or 3G module

Hi,
I would like to know if Arduino Yun can add a 3G or GPRS module (and which) because what I want to do can't use WiFi neither Ethernet...
Thanks!

Hi,

I would like to know if Arduino Yun can add a 3G or GPRS module (and which) because what I want to do can't use WiFi neither Ethernet...

you can use 3g/UMTS usb dongle.
I tried with HUAWEI E3131 and HUAWEI E169

Here a few scripts i wrote for that:

There's also this guide released by Linino:
http://linino.org/doku.php?id=wiki:lininousbmodem