Since I sync'd just now app-text/scrollkeeper-9999.ebuild has appeared, with a description of "Dummy scrollkeeper for testing rarian" and homepage "http://gnome.gentoo.org" Its not masked and is showing as an upgrade for the real version, app-text/scrollkeeper-0.3.14-r2 - description "cataloging system for documentation on open systems" and homepage "http://scrollkeeper.sourceforge.net/"Portage 2.1.3.19 (default-linux/x86/2007.0/desktop, gcc-4.1.2, glibc-2.6.1-r0, 2.6.20-gentoo-r8 i686) # emerge --info ================================================================= System uname: 2.6.20-gentoo-r8 i686 Intel(R) Pentium(R) 4 CPU 3.00GHz Timestamp of tree: Thu, 22 Nov 2007 18:46:01 +0000 app-shells/bash: 3.2_p17 dev-java/java-config: 1.3.7, 2.0.33-r1 dev-lang/python: 2.4.4-r6 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.9-r2 sys-apps/sandbox: 1.2.18.1-r2 sys-devel/autoconf: 2.13, 2.61-r1 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.18-r1 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.24 virtual/os-headers: 2.6.22-r2 ACCEPT_KEYWORDS="x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium4 -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config /var/qmail/alias /var/qmail/control /var/vpopmail/domains /var/vpopmail/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/texmf/web2c /etc/udev/rules.d" CXXFLAGS="-O2 -march=pentium4 -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://gentoo.virginmedia.com/ ftp://gentoo.virginmedia.com/sites/gentoo http://www.mirrorservice.org/sites/www.ibiblio.org/gentoo/ ftp://ftp.mirrorservice.org/sites/www.ibiblio.org/gentoo/ " LANG="en_GB" LINGUAS="en_GB" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_EXTRA_OPTS="--timeout=2000" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/layman/sunrise /usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X a52 acl acpi akode alsa apache2 asf berkdb bitmap-fonts bluetooth cairo cdr cli cracklib crypt cups dar64 dbus doc dri dv dvd dvdr dvdread emboss encode esd evo fam firefox fortran gdbm gif gpm gstreamer gtk gtk2 hal iconv imap ipv6 isdnlog jpeg kde kerberos ldap mad maildir midi mikmod mozbranding mp3 mpeg mudflap ncurses nls nptl nptlonly nsplugin ogg opengl openmp oss pam pcre pdf perl png pppd python qmail qt3 qt3support qt4 quicktime readline reflection sdk sdl session spl ssl svg tcl tcltk tcpd tiff tk truetype truetype-fonts type1-fonts unicode vorbis win32codecs x86 xml xorg xv xvid zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" CAMERAS="canon ptp2" ELIBC="glibc" INPUT_DEVICES="keyboard mouse wacom evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_GB" USERLAND="GNU" VIDEO_CARDS="fglrx vesa vga" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LDFLAGS, MAKEOPTS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS
Yes, and it's completely intended as such...
http://www.gentoo.org/proj/en/desktop/gnome/howtos/gnome-2.20-upgrade.xml has the explanation..