The day you can connect a USB memory to your phone, you realize that you don't need a computer anymore for a lot of transfers. Not to mention the endless possibility of hardware extensions without the need of a proprietary connector.

I do it every day, sorry. There is no quicker way with a Gnome desktop: select the file and "Send to..." in the menu, chose the device and it's done. No need of a cable or of a specific application.