Final version is out and really fixes bug 186941 without a <dev-java/jgoodies-looks-1.1.0, which breaks depgraph creation at the moment for stable users on x86, so you might want to get it stable fast. Copying the beta3 ebuild over without jgoodies patch works fine.
Bumped. As Opfer noted, stabilizing jgoodies-forms-1.1.0 in bug 199252 leads to depgraph breakages with jabref-2.2, so jabref-2.3 should go stable together with jgoodies-forms. Because x86 already did jgoodies-forms, they should do jabref ASAP, other arches can wait the usual 30 days on both, but since the 2.3_beta3 was in tree for more than month already and final has only small fixes above it, it should be safe to stabilize now, your call.
x86 done
app-text/jabref-2.3 on AMD64: Emerges fine, No Collisions. Works fine, tested using a large .bib file. Portage 2.1.3.19 (default-linux/amd64/2007.0, gcc-4.1.2, glibc-2.6.1-r0, 2.6.24-rc1-git15 x86_64) ================================================================= System uname: 2.6.24-rc1-git15 x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz Timestamp of tree: Mon, 19 Nov 2007 14:30:08 +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="amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=nocona -fomit-frame-pointer -pipe" CHOST="x86_64-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" 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/terminfo /etc/texmf/web2c /etc/udev/rules.d" CXXFLAGS="-O2 -march=nocona -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="collision-protect distlocks metadata-transfer multilib-strict sandbox sfperms strict test unmerge-orphans userfetch" GENTOO_MIRRORS="http://distro.ibiblio.org/pub/linux/distributions/gentoo/ http://www.gtlib.gatech.edu/pub/gentoo " LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8" MAKEOPTS="-j3" PKGDIR="/packages" 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/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X aac acl alsa amd64 berkdb bitmap-fonts cli cracklib crypt cups dbus doc dri examples flac fortran gdbm gpm hal iconv isdnlog jpeg kde kdeenablefinal mad midi mmx mp3 mpeg mudflap ncurses nls nptl nptlonly ogg opengl openmp oss pam pcre perl png pppd python qt4 readline reflection session spl sse sse2 ssl symlink tcpd test truetype truetype-fonts type1-fonts unicode vorbis xml xorg zlib" ALSA_CARDS="usb-audio hda-intel" 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="nvidia" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
amd64 stable, thanks Ken for testing
Unable to keyword due to bug 199252
ppc stable. closing since we're last.