Please register our workshop and participate! You can find the detailed instructions on registration here: https://www.sigmobile.org/mobicom/2017/registration.php
The Early Registration Deadline is: September 8, 2017. You can still register after that.
If you need a support letter to acquire a visa for attending MobiCom, please email firstname.lastname@example.org. See the detailed instruction here: https://www.sigmobile.org/mobicom/2017/registration.php#visa