Writing an ISO file to flash memory I have an Ubuntu DVD ISO file downloaded in my android phone. Is there any way or any app I can use to write the ISO file to a USB flash memory connected to the phone so that the flash memory can be used just like a DVD to boot into Ubuntu in a desktop computer?
There is an app on the Play Store called 'DriveDroid' which will allow you to do exactly what it is you are looking for.

I am not sure however, if it is free or not but unfortunately you need a rooted phone to use it.