You can connect to iFiles from any computer, all you need is WebDav client or browser and your iPhone/iPod touch to be on the same network.
KDE(Konqueror):
To connect from KDE enter your device URL into Konqueror's Address Bar
Note: You should replace http: with webdav:
For Example: webdav://10.0.1.100:8080/
You can find out the correct address by tapping Wi-Fi Status Icon
or going to settings
Gnome:
In Nautilus select Connect to Server from Places or File menu
Select WebDav
For Server enter IP address part your device URL
Enter port number. Default is 8080
Enter authentication information if needed
Click Connect
You can find out the correct address by tapping Wi-Fi Status Icon
or going to settings