The page got changed (then reverted) for users to use:
svn checkout svn://balloonboard.org/balloon/tags/1.0-stable
Under development (and known to be broken -out of the box-):
svn checkout svn://balloonboard.org/balloon/trunk
> I did a make menuconfig which generated a config. Then ran make which fell
> over at:
> [ -z "/opt/balloon/trunk/package/kernel/patches/184.108.40.206/-CUED" -o ! -f /opt/balloon/trunk/package/kernel/patches/220.127.116.11/series-balloon3-CUED ] ;
> then \
> ln -sf /opt/balloon/trunk/package/kernel/patches/18.104.22.168/series-balloon3.default /opt/balloon/trunk/package/kernel/patches/22.214.171.124/series;
> else \
> ln -sf /opt/balloon/trunk/package/kernel/patches/126.96.36.199/series-balloon3-CUED /opt/balloon/trunk/package/kernel/patches/188.8.131.52/series;
> ln: creating symbolic link
> `/opt/balloon/trunk/package/kernel/patches/184.108.40.206/series': No such file or
> make: *** [/opt/balloon/trunk/build/kernel/series.stamp] Error 1
> make: Leaving directory `/opt/balloon/trunk/package/kernel'
> make: *** [zImageBoot] Error 2
> There are patches for other kernels, but not the default!
I am looking into that to fix it. Thanks for reporting.