I was bored so I did some work on Cowj, a GWT library that adds support to GWT for some of the stuff that stock Java has which GWT doesn't. You now get InputStreams, OutputStreams, Readers, Writes, Files, Channels, complete support of java.util.zip, and much more. Go get version 0.2 now!

Cowj main download page

See the main Cowj page for more information.