Hi,
I recently started to build the meta-openpli layer against yocto and they obviously have more strict rules for QA Messages than openembedded. So I've fixed a few of them. Maybe you are interested to include them.
recipes-multimedia/gstreamer/gst-plugins-good_0.10.31.1.bb
recipes-devtools/python/python-twisted_12.0.0.bb
recipes-multimedia/tuxtxt/libtuxtxt.bb
also had some trouble with the recipe recipes-openpli/enigma2-et-plugins/gst-plugin-libxt.bb and this is the fix for recipes-openpli/enigma2/enigma2.bb which depends on libxt which seems to be only applicable to the Xtrend devices.
If anybody is interested, I am working on a SH4 port of openpli.