I'm interesting to help to port MeeGo but I don't exactly know where to start. I have some knowledges in linux kernel, cross compilation, etc...
Do you have a image actually working ?
How can I help (I have some spare time right now...), I'm on an Archos 5g.
Don't expect too much with your hardware (it sadly lacks the SGX core for EGL 3D acceleration), but it should be nevertheless possible to get it working. After all they are also working on some things for the n8x0 which doesn't have that either.
Currently armv7 should be working again (MeeGo switched to GCC 4.5 and broke armv7 builds for several weeks). You can start with the data that can be found on the MeeGo wiki. Especially the BeagleBoard information can be valuable. You will have to skip all the SGX parts though.
As always I'm available on freenode IRC in #openaos and there is an dedicated #meego-arm channel for all things relating to arm devices and meego.