The various kde 3.5.0-beta2 ebuilds try to download from the /pub/kde/unstable/3.5.0-beta2 directory, but the directory should be /pub/kde/unstable/3.5-beta2 (that's what it is on ftp.kde.org). As a result, downloading fails.
Should be fixed now.
*** Bug 109680 has been marked as a duplicate of this bug. ***
*** Bug 109676 has been marked as a duplicate of this bug. ***
(In reply to comment #1) > Should be fixed now. Indeed it is. Thanks.