After checking a number of "free" apps - & finding limiting file transfer etc. unless you pay for the "pro" version - I was going to do just that (pay for one) when I found this "Wifi File Transfer" app at the PlayStore. It's free, small (368KB) & it requires you to install a java little program in your PC & that's it. Just finished transferring a 1GB file PC to N4, flawlessly. Any other apps similar, better?