I'm able to build gnome-extra/gdesklets-core-0.25 and I've tested many of the python plugins in x11-plugins/desklet-* (15 total desklets). I think it would be safe to add ~amd64 to keywords in all these packages. Reproducible: Always Steps to Reproduce: 1. 2. 3.
I'll need a list of the x11-plugins/desklet's that you've tried. I can only add amd64 to the ones that have been tested.
I've tested all the desklets now and they all work besides psidisplays and psisensors. cornerxmms desklet requires dev-python/pyxmms to be unmasked, and I'm filing a separate report for that. Please add ~amd64 to these tested packages: gnome-core/gdesklets-core-0.25 x11-plugins/desklet-clock-0.32-r1 x11-plugins/desklet-cornerxmms-0.0.5-r1 x11-plugins/desklet-cpuinfo-0.1.4-r1 x11-plugins/desklet-goodweather-0.3 x11-plugins/desklet-ltvariations-0.21-r1 x11-plugins/desklet-meminfo-0.1.4-r1 x11-plugins/desklet-multitail-0.2.2 x11-plugins/desklet-networkinfo-0.1.4-r1 x11-plugins/desklet-starterbar-0.22.1 x11-plugins/desklet-temperature-0.2 x11-plugins/desklet-weather-0.22
done